87021506285363 has 32 divisors (see below), whose sum is σ = 102082256640000. Its totient is φ = 73452072177792.

The previous prime is 87021506285341. The next prime is 87021506285387. The reversal of 87021506285363 is 36358260512078.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87021506285363 - 2²⁶ = 87021439176499 is a prime.

It is a super-2 number, since 2×87021506285363² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87021506285299 and 87021506285308.

It is not an unprimeable number, because it can be changed into a prime (87021506282363) 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, 20393858 + ... + 24288936.

It is an arithmetic number, because the mean of its divisors is an integer number (3190070520000).

Almost surely, 2^{87021506285363} is an apocalyptic number.

87021506285363 is a deficient number, since it is larger than the sum of its proper divisors (15060750354637).

87021506285363 is a wasteful number, since it uses less digits than its factorization.

87021506285363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898259.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 87021506285363 in words is "eighty-seven trillion, twenty-one billion, five hundred six million, two hundred eighty-five thousand, three hundred sixty-three".