51340644530 has 16 divisors (see below), whose sum is σ = 105615040320. Its totient is φ = 17602506672.

The previous prime is 51340644517. The next prime is 51340644547. The reversal of 51340644530 is 3544604315.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366718820 + ... + 366718959.

It is an arithmetic number, because the mean of its divisors is an integer number (6600940020).

Almost surely, 2^51340644530 is an apocalyptic number.

51340644530 is an abundant number, since it is smaller than the sum of its proper divisors (54274395790).

51340644530 is a wasteful number, since it uses less digits than its factorization.

51340644530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733437793.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 51340644530 in words is "fifty-one billion, three hundred forty million, six hundred forty-four thousand, five hundred thirty".