74316156397 has 16 divisors (see below), whose sum is σ = 86745513600. Its totient is φ = 63641173344.

The previous prime is 74316156367. The next prime is 74316156403. The reversal of 74316156397 is 79365161347.

It is not a de Polignac number, because 74316156397 - 2⁷ = 74316156269 is a prime.

It is a super-2 number, since 2×74316156397² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74316156307) 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, 277518 + ... + 475024.

It is an arithmetic number, because the mean of its divisors is an integer number (5421594600).

Almost surely, 2^74316156397 is an apocalyptic number.

It is an amenable number.

74316156397 is a deficient number, since it is larger than the sum of its proper divisors (12429357203).

74316156397 is a wasteful number, since it uses less digits than its factorization.

74316156397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198625 (or 198611 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 52.

The spelling of 74316156397 in words is "seventy-four billion, three hundred sixteen million, one hundred fifty-six thousand, three hundred ninety-seven".