651713742251 has 16 divisors (see below), whose sum is σ = 765861186048. Its totient is φ = 546741597600.

The previous prime is 651713742167. The next prime is 651713742257. The reversal of 651713742251 is 152247317156.

It is not a de Polignac number, because 651713742251 - 2³⁸ = 376835835307 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651713742257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108341 + ... + 1146806.

It is an arithmetic number, because the mean of its divisors is an integer number (47866324128).

Almost surely, 2^651713742251 is an apocalyptic number.

651713742251 is a deficient number, since it is larger than the sum of its proper divisors (114147443797).

651713742251 is a wasteful number, since it uses less digits than its factorization.

651713742251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258802.

The product of its digits is 352800, while the sum is 44.

The spelling of 651713742251 in words is "six hundred fifty-one billion, seven hundred thirteen million, seven hundred forty-two thousand, two hundred fifty-one".