651156979534 has 16 divisors (see below), whose sum is σ = 977948581680. Its totient is φ = 325174199680.

The previous prime is 651156979519. The next prime is 651156979541. The reversal of 651156979534 is 435979651156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26891877 + ... + 26916079.

It is an arithmetic number, because the mean of its divisors is an integer number (61121786355).

Almost surely, 2^651156979534 is an apocalyptic number.

651156979534 is a deficient number, since it is larger than the sum of its proper divisors (326791602146).

651156979534 is a wasteful number, since it uses less digits than its factorization.

651156979534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40355.

The product of its digits is 30618000, while the sum is 61.

The spelling of 651156979534 in words is "six hundred fifty-one billion, one hundred fifty-six million, nine hundred seventy-nine thousand, five hundred thirty-four".