87440293724 has 12 divisors (see below), whose sum is σ = 174880587504. Its totient is φ = 37474411584.

The previous prime is 87440293711. The next prime is 87440293751. The reversal of 87440293724 is 42739204478.

87440293724 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561433789 + ... + 1561433844.

It is an arithmetic number, because the mean of its divisors is an integer number (14573382292).

Almost surely, 2^87440293724 is an apocalyptic number.

It is an amenable number.

87440293724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87440293724 is a wasteful number, since it uses less digits than its factorization.

87440293724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122867644 (or 3122867642 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 87440293724 in words is "eighty-seven billion, four hundred forty million, two hundred ninety-three thousand, seven hundred twenty-four".