51630523747 has 8 divisors (see below), whose sum is σ = 57697969392. Its totient is φ = 45792038400.

The previous prime is 51630523691. The next prime is 51630523807. The reversal of 51630523747 is 74732503615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51630523747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51630527747) 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, 57239598 + ... + 57240499.

It is an arithmetic number, because the mean of its divisors is an integer number (7212246174).

Almost surely, 2^51630523747 is an apocalyptic number.

51630523747 is a deficient number, since it is larger than the sum of its proper divisors (6067445645).

51630523747 is a wasteful number, since it uses less digits than its factorization.

51630523747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114480149.

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 51630523747 in words is "fifty-one billion, six hundred thirty million, five hundred twenty-three thousand, seven hundred forty-seven".