51502016699 has 8 divisors (see below), whose sum is σ = 58861133568. Its totient is φ = 44143321320.

The previous prime is 51502016641. The next prime is 51502016723. The reversal of 51502016699 is 99661020515.

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

It is not a de Polignac number, because 51502016699 - 2¹² = 51502012603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51502816699) 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, 225914 + ... + 392480.

It is an arithmetic number, because the mean of its divisors is an integer number (7357641696).

Almost surely, 2^51502016699 is an apocalyptic number.

51502016699 is a deficient number, since it is larger than the sum of its proper divisors (7359116869).

51502016699 is a wasteful number, since it uses less digits than its factorization.

51502016699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210745.

The product of its (nonzero) digits is 145800, while the sum is 44.

The spelling of 51502016699 in words is "fifty-one billion, five hundred two million, sixteen thousand, six hundred ninety-nine".