74407703681 has 8 divisors (see below), whose sum is σ = 77472077928. Its totient is φ = 71402832000.

The previous prime is 74407703677. The next prime is 74407703753. The reversal of 74407703681 is 18630770447.

It can be written as a sum of positive squares in 4 ways, for example, as 3938692081 + 70469011600 = 62759^2 + 265460^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 74407703681 - 2² = 74407703677 is a prime.

It is a super-2 number, since 2×74407703681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74407700681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14873090 + ... + 14878091.

It is an arithmetic number, because the mean of its divisors is an integer number (9684009741).

Almost surely, 2^74407703681 is an apocalyptic number.

It is an amenable number.

74407703681 is a deficient number, since it is larger than the sum of its proper divisors (3064374247).

74407703681 is a wasteful number, since it uses less digits than its factorization.

74407703681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29751283.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 74407703681 in words is "seventy-four billion, four hundred seven million, seven hundred three thousand, six hundred eighty-one".