51698906703 has 48 divisors (see below), whose sum is σ = 79723556640. Its totient is φ = 32170924032.

The previous prime is 51698906689. The next prime is 51698906711. The reversal of 51698906703 is 30760989615.

It is not a de Polignac number, because 51698906703 - 2⁴ = 51698906687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51698906703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51698906603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11723563 + ... + 11727971.

It is an arithmetic number, because the mean of its divisors is an integer number (1660907430).

Almost surely, 2^51698906703 is an apocalyptic number.

51698906703 is a deficient number, since it is larger than the sum of its proper divisors (28024649937).

51698906703 is a wasteful number, since it uses less digits than its factorization.

51698906703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048 (or 5045 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 51698906703 in words is "fifty-one billion, six hundred ninety-eight million, nine hundred six thousand, seven hundred three".