1087615802531 has 2 divisors, whose sum is σ = 1087615802532. Its totient is φ = 1087615802530.

The previous prime is 1087615802521. The next prime is 1087615802629. The reversal of 1087615802531 is 1352085167801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1087615802531 - 2¹⁰ = 1087615801507 is a prime.

It is a super-2 number, since 2×1087615802531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1087615802521) by changing a digit.

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 as a sum of consecutive naturals, namely, 543807901265 + 543807901266.

It is an arithmetic number, because the mean of its divisors is an integer number (543807901266).

Almost surely, 2^{1087615802531} is an apocalyptic number.

1087615802531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087615802531 is an equidigital number, since it uses as much as digits as its factorization.

1087615802531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 1087615802531 in words is "one trillion, eighty-seven billion, six hundred fifteen million, eight hundred two thousand, five hundred thirty-one".