7172557704681 has 8 divisors (see below), whose sum is σ = 9564105494784. Its totient is φ = 4781357525520.

The previous prime is 7172557704677. The next prime is 7172557704727. The reversal of 7172557704681 is 1864077552717.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7172557704681 - 2² = 7172557704677 is a prime.

It is a super-2 number, since 2×7172557704681² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7172557704281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86854585 + ... + 86937126.

It is an arithmetic number, because the mean of its divisors is an integer number (1195513186848).

Almost surely, 2^{7172557704681} is an apocalyptic number.

It is an amenable number.

7172557704681 is a deficient number, since it is larger than the sum of its proper divisors (2391547790103).

7172557704681 is a wasteful number, since it uses less digits than its factorization.

7172557704681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173805471.

The product of its (nonzero) digits is 23049600, while the sum is 60.

The spelling of 7172557704681 in words is "seven trillion, one hundred seventy-two billion, five hundred fifty-seven million, seven hundred four thousand, six hundred eighty-one".