676722256451 has 4 divisors (see below), whose sum is σ = 684325877400. Its totient is φ = 669118635504.

The previous prime is 676722256447. The next prime is 676722256453. The reversal of 676722256451 is 154652227676.

676722256451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 676722256451 - 2² = 676722256447 is a prime.

It is a super-2 number, since 2×676722256451² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 676722256393 and 676722256402.

It is not an unprimeable number, because it can be changed into a prime (676722256453) 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, 3801810341 + ... + 3801810518.

It is an arithmetic number, because the mean of its divisors is an integer number (171081469350).

Almost surely, 2^676722256451 is an apocalyptic number.

676722256451 is a deficient number, since it is larger than the sum of its proper divisors (7603620949).

676722256451 is an equidigital number, since it uses as much as digits as its factorization.

676722256451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603620948.

The product of its digits is 8467200, while the sum is 53.

The spelling of 676722256451 in words is "six hundred seventy-six billion, seven hundred twenty-two million, two hundred fifty-six thousand, four hundred fifty-one".