676081321901 has 4 divisors (see below), whose sum is σ = 676229557404. Its totient is φ = 675933086400.

The previous prime is 676081321897. The next prime is 676081321967. The reversal of 676081321901 is 109123180676.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 499955055625 + 176126266276 = 707075^2 + 419674^2 .

It is a cyclic number.

It is not a de Polignac number, because 676081321901 - 2² = 676081321897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676081321501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74110910 + ... + 74120031.

It is an arithmetic number, because the mean of its divisors is an integer number (169057389351).

Almost surely, 2^676081321901 is an apocalyptic number.

It is an amenable number.

676081321901 is a deficient number, since it is larger than the sum of its proper divisors (148235503).

676081321901 is a wasteful number, since it uses less digits than its factorization.

676081321901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148235502.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 676081321901 in words is "six hundred seventy-six billion, eighty-one million, three hundred twenty-one thousand, nine hundred one".