51693930530 has 16 divisors (see below), whose sum is σ = 101508081984. Its totient is φ = 18797792880.

The previous prime is 51693930523. The next prime is 51693930551. The reversal of 51693930530 is 3503939615.

It is a Curzon number.

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, 234972302 + ... + 234972521.

It is an arithmetic number, because the mean of its divisors is an integer number (6344255124).

Almost surely, 2^51693930530 is an apocalyptic number.

51693930530 is a deficient number, since it is larger than the sum of its proper divisors (49814151454).

51693930530 is a wasteful number, since it uses less digits than its factorization.

51693930530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469944841.

The product of its (nonzero) digits is 328050, while the sum is 44.

The spelling of 51693930530 in words is "fifty-one billion, six hundred ninety-three million, nine hundred thirty thousand, five hundred thirty".