74436398477 has 32 divisors (see below), whose sum is σ = 91471776000. Its totient is φ = 60380619264.

The previous prime is 74436398471. The next prime is 74436398483. The reversal of 74436398477 is 77489363447.

It is an interprime number because it is at equal distance from previous prime (74436398471) and next prime (74436398483).

It is not a de Polignac number, because 74436398477 - 2¹⁴ = 74436382093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74436398471) 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, 6726533 + ... + 6737589.

It is an arithmetic number, because the mean of its divisors is an integer number (2858493000).

Almost surely, 2^74436398477 is an apocalyptic number.

It is an amenable number.

74436398477 is a deficient number, since it is larger than the sum of its proper divisors (17035377523).

74436398477 is a wasteful number, since it uses less digits than its factorization.

74436398477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130 (or 12116 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 62.

The spelling of 74436398477 in words is "seventy-four billion, four hundred thirty-six million, three hundred ninety-eight thousand, four hundred seventy-seven".