74657690971 has 4 divisors (see below), whose sum is σ = 74661497152. Its totient is φ = 74653884792.

The previous prime is 74657690963. The next prime is 74657690993. The reversal of 74657690971 is 17909675647.

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 74657690971 - 2³ = 74657690963 is a prime.

It is a super-2 number, since 2×74657690971² (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 (74657690911) 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, 1873515 + ... + 1912948.

It is an arithmetic number, because the mean of its divisors is an integer number (18665374288).

Almost surely, 2^74657690971 is an apocalyptic number.

74657690971 is a deficient number, since it is larger than the sum of its proper divisors (3806181).

74657690971 is a wasteful number, since it uses less digits than its factorization.

74657690971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806180.

The product of its (nonzero) digits is 20003760, while the sum is 61.

The spelling of 74657690971 in words is "seventy-four billion, six hundred fifty-seven million, six hundred ninety thousand, nine hundred seventy-one".