6455139369642 has 24 divisors (see below), whose sum is σ = 14194883591616. Its totient is φ = 2119598001576.

The previous prime is 6455139369629. The next prime is 6455139369677. The reversal of 6455139369642 is 2469639315546.

6455139369642 is a `hidden beast` number, since 6 + 4 + 551 + 3 + 9 + 36 + 9 + 6 + 42 = 666.

It is a super-2 number, since 2×6455139369642² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6455139369642.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2676258898 + ... + 2676261309.

It is an arithmetic number, because the mean of its divisors is an integer number (591453482984).

Almost surely, 2^{6455139369642} is an apocalyptic number.

6455139369642 is an abundant number, since it is smaller than the sum of its proper divisors (7739744221974).

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

6455139369642 is a wasteful number, since it uses less digits than its factorization.

6455139369642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352520282 (or 5352520279 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 63.

The spelling of 6455139369642 in words is "six trillion, four hundred fifty-five billion, one hundred thirty-nine million, three hundred sixty-nine thousand, six hundred forty-two".