74638795077 has 96 divisors (see below), whose sum is σ = 139214659584. Its totient is φ = 37397116800.

The previous prime is 74638795073. The next prime is 74638795081. The reversal of 74638795077 is 77059783647.

74638795077 is a `hidden beast` number, since 7 + 46 + 3 + 87 + 9 + 507 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (74638795073) and next prime (74638795081).

It is not a de Polignac number, because 74638795077 - 2² = 74638795073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74638795073) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6589623 + ... + 6600939.

It is an arithmetic number, because the mean of its divisors is an integer number (1450152704).

Almost surely, 2^74638795077 is an apocalyptic number.

74638795077 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

74638795077 is a deficient number, since it is larger than the sum of its proper divisors (64575864507).

74638795077 is a wasteful number, since it uses less digits than its factorization.

74638795077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11679 (or 11676 counting only the distinct ones).

The product of its (nonzero) digits is 62233920, while the sum is 63.

The spelling of 74638795077 in words is "seventy-four billion, six hundred thirty-eight million, seven hundred ninety-five thousand, seventy-seven".