6451933685776 has 40 divisors (see below), whose sum is σ = 13253437361880. Its totient is φ = 3032193153024.

The previous prime is 6451933685761. The next prime is 6451933685779. The reversal of 6451933685776 is 6775863391546.

It can be written as a sum of positive squares in 4 ways, for example, as 1802907740176 + 4649025945600 = 1342724^2 + 2156160^2 .

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6451933685779) 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, 15461431 + ... + 15873238.

It is an arithmetic number, because the mean of its divisors is an integer number (331335934047).

Almost surely, 2^{6451933685776} is an apocalyptic number.

It is an amenable number.

6451933685776 is an abundant number, since it is smaller than the sum of its proper divisors (6801503676104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6451933685776 is a wasteful number, since it uses less digits than its factorization.

6451933685776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31335451 (or 31335445 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 70.

The spelling of 6451933685776 in words is "six trillion, four hundred fifty-one billion, nine hundred thirty-three million, six hundred eighty-five thousand, seven hundred seventy-six".