2551631210487 has 72 divisors (see below), whose sum is σ = 3807434393568. Its totient is φ = 1646595216000.

The previous prime is 2551631210483. The next prime is 2551631210563. The reversal of 2551631210487 is 7840121361552.

2551631210487 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 631 + 2 + 1 + 0 + 4 + 8 + 7 = 666.

2551631210487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2551631210487 - 2² = 2551631210483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551631210483) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1359418993 + ... + 1359420869.

It is an arithmetic number, because the mean of its divisors is an integer number (52881033244).

Almost surely, 2^{2551631210487} is an apocalyptic number.

2551631210487 is a deficient number, since it is larger than the sum of its proper divisors (1255803183081).

2551631210487 is a wasteful number, since it uses less digits than its factorization.

2551631210487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2615 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 2551631210487 in words is "two trillion, five hundred fifty-one billion, six hundred thirty-one million, two hundred ten thousand, four hundred eighty-seven".