87902113939 has 2 divisors, whose sum is σ = 87902113940. Its totient is φ = 87902113938.

The previous prime is 87902113919. The next prime is 87902113963. The reversal of 87902113939 is 93931120978.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87902113939 - 2⁵ = 87902113907 is a prime.

It is not a weakly prime, because it can be changed into another prime (87902113919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43951056969 + 43951056970.

It is an arithmetic number, because the mean of its divisors is an integer number (43951056970).

Almost surely, 2^87902113939 is an apocalyptic number.

87902113939 is a deficient number, since it is larger than the sum of its proper divisors (1).

87902113939 is an equidigital number, since it uses as much as digits as its factorization.

87902113939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The spelling of 87902113939 in words is "eighty-seven billion, nine hundred two million, one hundred thirteen thousand, nine hundred thirty-nine".