87037800618021 has 16 divisors (see below), whose sum is σ = 127256398086720. Its totient is φ = 52476865182720.

The previous prime is 87037800618001. The next prime is 87037800618053. The reversal of 87037800618021 is 12081600873078.

It is not a de Polignac number, because 87037800618021 - 2⁷ = 87037800617893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87037800618001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6832918786 + ... + 6832931523.

It is an arithmetic number, because the mean of its divisors is an integer number (7953524880420).

Almost surely, 2^{87037800618021} is an apocalyptic number.

It is an amenable number.

87037800618021 is a deficient number, since it is larger than the sum of its proper divisors (40218597468699).

87037800618021 is a wasteful number, since it uses less digits than its factorization.

87037800618021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13665850516.

The product of its (nonzero) digits is 903168, while the sum is 51.

The spelling of 87037800618021 in words is "eighty-seven trillion, thirty-seven billion, eight hundred million, six hundred eighteen thousand, twenty-one".