87743924574021 has 16 divisors (see below), whose sum is σ = 130530381118720. Its totient is φ = 58253227928640.

The previous prime is 87743924574001. The next prime is 87743924574023. The reversal of 87743924574021 is 12047542934778.

It is a happy number.

87743924574021 is a `hidden beast` number, since 8 + 7 + 7 + 4 + 39 + 2 + 4 + 574 + 0 + 21 = 666.

It is not a de Polignac number, because 87743924574021 - 2⁶ = 87743924573957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87743924574021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87743924574023) 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, 6742265245 + ... + 6742278258.

It is an arithmetic number, because the mean of its divisors is an integer number (8158148819920).

Almost surely, 2^{87743924574021} is an apocalyptic number.

It is an amenable number.

87743924574021 is a deficient number, since it is larger than the sum of its proper divisors (42786456544699).

87743924574021 is a wasteful number, since it uses less digits than its factorization.

87743924574021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13484543753 (or 13484543747 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 63.

The spelling of 87743924574021 in words is "eighty-seven trillion, seven hundred forty-three billion, nine hundred twenty-four million, five hundred seventy-four thousand, twenty-one".