87902135247 has 16 divisors (see below), whose sum is σ = 118888384608. Its totient is φ = 57759736320.

The previous prime is 87902135221. The next prime is 87902135291. The reversal of 87902135247 is 74253120978.

It is a happy number.

It is not a de Polignac number, because 87902135247 - 2³⁶ = 19182658511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87902135196 and 87902135205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87902135047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192547 + ... + 461387.

It is an arithmetic number, because the mean of its divisors is an integer number (7430524038).

Almost surely, 2^87902135247 is an apocalyptic number.

87902135247 is a deficient number, since it is larger than the sum of its proper divisors (30986249361).

87902135247 is a wasteful number, since it uses less digits than its factorization.

87902135247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270410.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 87902135247 in words is "eighty-seven billion, nine hundred two million, one hundred thirty-five thousand, two hundred forty-seven".