87345137140263 has 80 divisors (see below), whose sum is σ = 134466243912000. Its totient is φ = 56468136890880.

The previous prime is 87345137140243. The next prime is 87345137140267. The reversal of 87345137140263 is 36204173154378.

87345137140263 is a `hidden beast` number, since 8 + 7 + 3 + 4 + 5 + 1 + 371 + 4 + 0 + 263 = 666.

It is not a de Polignac number, because 87345137140263 - 2³⁸ = 87070259233319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87345137140267) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 669405193 + ... + 669535661.

It is an arithmetic number, because the mean of its divisors is an integer number (1680828048900).

Almost surely, 2^{87345137140263} is an apocalyptic number.

87345137140263 is a deficient number, since it is larger than the sum of its proper divisors (47121106771737).

87345137140263 is a wasteful number, since it uses less digits than its factorization.

87345137140263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131734 (or 131725 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 87345137140263 in words is "eighty-seven trillion, three hundred forty-five billion, one hundred thirty-seven million, one hundred forty thousand, two hundred sixty-three".