74037443703681 has 16 divisors (see below), whose sum is σ = 99895722292800. Its totient is φ = 48769507742208.

The previous prime is 74037443703677. The next prime is 74037443703733. The reversal of 74037443703681 is 18630734473047.

It is not a de Polignac number, because 74037443703681 - 2² = 74037443703677 is a prime.

It is a super-2 number, since 2×74037443703681² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74037443703661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96778696 + ... + 97540713.

It is an arithmetic number, because the mean of its divisors is an integer number (6243482643300).

Almost surely, 2^{74037443703681} is an apocalyptic number.

It is an amenable number.

74037443703681 is a deficient number, since it is larger than the sum of its proper divisors (25858278589119).

74037443703681 is a wasteful number, since it uses less digits than its factorization.

74037443703681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194320928.

The product of its (nonzero) digits is 28449792, while the sum is 57.

The spelling of 74037443703681 in words is "seventy-four trillion, thirty-seven billion, four hundred forty-three million, seven hundred three thousand, six hundred eighty-one".