74896374840 has 128 divisors (see below), whose sum is σ = 259187765760. Its totient is φ = 16959158784.

The previous prime is 74896374823. The next prime is 74896374841. The reversal of 74896374840 is 4847369847.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74896374841) 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, 326767 + ... + 506526.

It is an arithmetic number, because the mean of its divisors is an integer number (2024904420).

Almost surely, 2^74896374840 is an apocalyptic number.

74896374840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74896374840 is an abundant number, since it is smaller than the sum of its proper divisors (184291390920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74896374840 is a wasteful number, since it uses less digits than its factorization.

74896374840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833421 (or 833417 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 74896374840 in words is "seventy-four billion, eight hundred ninety-six million, three hundred seventy-four thousand, eight hundred forty".