51695113047 has 8 divisors (see below), whose sum is σ = 68939999856. Its totient is φ = 34456817472.

The previous prime is 51695113027. The next prime is 51695113073. The reversal of 51695113047 is 74031159615.

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

It is not a de Polignac number, because 51695113047 - 2¹² = 51695108951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51695113027) 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, 1629478 + ... + 1660899.

It is an arithmetic number, because the mean of its divisors is an integer number (8617499982).

Almost surely, 2^51695113047 is an apocalyptic number.

51695113047 is a deficient number, since it is larger than the sum of its proper divisors (17244886809).

51695113047 is a wasteful number, since it uses less digits than its factorization.

51695113047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295617.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 51695113047 in words is "fifty-one billion, six hundred ninety-five million, one hundred thirteen thousand, forty-seven".