651680502634 has 32 divisors (see below), whose sum is σ = 1121435876736. Its totient is φ = 278225098560.

The previous prime is 651680502491. The next prime is 651680502667. The reversal of 651680502634 is 436205086156.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10457749 + ... + 10519879.

It is an arithmetic number, because the mean of its divisors is an integer number (35044871148).

Almost surely, 2^651680502634 is an apocalyptic number.

651680502634 is a deficient number, since it is larger than the sum of its proper divisors (469755374102).

651680502634 is a wasteful number, since it uses less digits than its factorization.

651680502634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64990.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 651680502634 in words is "six hundred fifty-one billion, six hundred eighty million, five hundred two thousand, six hundred thirty-four".