87013033637 has 2 divisors, whose sum is σ = 87013033638. Its totient is φ = 87013033636.

The previous prime is 87013033621. The next prime is 87013033663. The reversal of 87013033637 is 73633031078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72400817476 + 14612216161 = 269074^2 + 120881^2 .

It is a cyclic number.

It is not a de Polignac number, because 87013033637 - 2⁴ = 87013033621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87013033594 and 87013033603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87013033337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43506516818 + 43506516819.

It is an arithmetic number, because the mean of its divisors is an integer number (43506516819).

Almost surely, 2^87013033637 is an apocalyptic number.

It is an amenable number.

87013033637 is a deficient number, since it is larger than the sum of its proper divisors (1).

87013033637 is an equidigital number, since it uses as much as digits as its factorization.

87013033637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 87013033637 in words is "eighty-seven billion, thirteen million, thirty-three thousand, six hundred thirty-seven".