54693631587 has 18 divisors (see below), whose sum is σ = 84835336908. Its totient is φ = 31251883488.

The previous prime is 54693631549. The next prime is 54693631637. The reversal of 54693631587 is 78513639645.

It is not a de Polignac number, because 54693631587 - 2⁶ = 54693631523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54693635587) 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 in 17 ways as a sum of consecutive naturals, for example, 2825839 + ... + 2845127.

Almost surely, 2^54693631587 is an apocalyptic number.

54693631587 is a deficient number, since it is larger than the sum of its proper divisors (30141705321).

54693631587 is an frugal number, since it uses more digits than its factorization.

54693631587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38595 (or 19299 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 57.

The spelling of 54693631587 in words is "fifty-four billion, six hundred ninety-three million, six hundred thirty-one thousand, five hundred eighty-seven".