676345049604 has 405 divisors, whose sum is σ = 2110764204549. Its totient is φ = 188297161920.

The previous prime is 676345049591. The next prime is 676345049617. The reversal of 676345049604 is 406940543676.

It is a happy number.

The square root of 676345049604 is 822402.

It is a perfect power (a square), and thus also a powerful number.

676345049604 is a `hidden beast` number, since 6 + 76 + 3 + 4 + 504 + 9 + 60 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (676345049591) and next prime (676345049617).

It can be written as a sum of positive squares in only one way, i.e., 21993483204 + 654351566400 = 148302^2 + 808920^2 .

It is a super-2 number, since 2×676345049604² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 6320981719 + ... + 6320981825.

Almost surely, 2^676345049604 is an apocalyptic number.

676345049604 is the 822402-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676345049604

676345049604 is an abundant number, since it is smaller than the sum of its proper divisors (1434419154945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

676345049604 is a wasteful number, since it uses less digits than its factorization.

676345049604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 676345049604 in words is "six hundred seventy-six billion, three hundred forty-five million, forty-nine thousand, six hundred four".