651713971942 has 16 divisors (see below), whose sum is σ = 1066523315472. Its totient is φ = 296210770720.

The previous prime is 651713971939. The next prime is 651713971991. The reversal of 651713971942 is 249179317156.

It is a super-2 number, since 2×651713971942² (a number of 24 digits) contains 22 as substring.

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, 849313 + ... + 1422940.

It is an arithmetic number, because the mean of its divisors is an integer number (66657707217).

Almost surely, 2^651713971942 is an apocalyptic number.

651713971942 is a deficient number, since it is larger than the sum of its proper divisors (414809343530).

651713971942 is a wasteful number, since it uses less digits than its factorization.

651713971942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285303.

The product of its digits is 2857680, while the sum is 55.

The spelling of 651713971942 in words is "six hundred fifty-one billion, seven hundred thirteen million, nine hundred seventy-one thousand, nine hundred forty-two".