51693930510 has 16 divisors (see below), whose sum is σ = 124065433296. Its totient is φ = 13785048128.

The previous prime is 51693930503. The next prime is 51693930511. The reversal of 51693930510 is 1503939615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51693930511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861565479 + ... + 861565538.

It is an arithmetic number, because the mean of its divisors is an integer number (7754089581).

Almost surely, 2^51693930510 is an apocalyptic number.

51693930510 is an abundant number, since it is smaller than the sum of its proper divisors (72371502786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51693930510 is a wasteful number, since it uses less digits than its factorization.

51693930510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723131027.

The product of its (nonzero) digits is 109350, while the sum is 42.

The spelling of 51693930510 in words is "fifty-one billion, six hundred ninety-three million, nine hundred thirty thousand, five hundred ten".