51887501831590 has 16 divisors (see below), whose sum is σ = 93552906807360. Its totient is φ = 20720466619200.

The previous prime is 51887501831531. The next prime is 51887501831593. The reversal of 51887501831590 is 9513810578815.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51887501831593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4316757870 + ... + 4316769889.

It is an arithmetic number, because the mean of its divisors is an integer number (5847056675460).

Almost surely, 2^{51887501831590} is an apocalyptic number.

51887501831590 is a deficient number, since it is larger than the sum of its proper divisors (41665404975770).

51887501831590 is a wasteful number, since it uses less digits than its factorization.

51887501831590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633528367.

The product of its (nonzero) digits is 12096000, while the sum is 61.

The spelling of 51887501831590 in words is "fifty-one trillion, eight hundred eighty-seven billion, five hundred one million, eight hundred thirty-one thousand, five hundred ninety".