74740402917 has 32 divisors (see below), whose sum is σ = 114574608000. Its totient is φ = 48096195840.

The previous prime is 74740402883. The next prime is 74740402931. The reversal of 74740402917 is 71920404747.

It is not a de Polignac number, because 74740402917 - 2³⁶ = 6020926181 is a prime.

It is a super-3 number, since 3×74740402917³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74740402987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3686434 + ... + 3706652.

It is an arithmetic number, because the mean of its divisors is an integer number (3580456500).

Almost surely, 2^74740402917 is an apocalyptic number.

It is an amenable number.

74740402917 is a deficient number, since it is larger than the sum of its proper divisors (39834205083).

74740402917 is a wasteful number, since it uses less digits than its factorization.

74740402917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24978 (or 24972 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 74740402917 in words is "seventy-four billion, seven hundred forty million, four hundred two thousand, nine hundred seventeen".