495139984137 has 8 divisors (see below), whose sum is σ = 733540717280. Its totient is φ = 330093322740.

The previous prime is 495139984117. The next prime is 495139984147. The reversal of 495139984137 is 731489931594.

495139984137 is a `hidden beast` number, since 4 + 9 + 513 + 9 + 9 + 84 + 1 + 37 = 666.

It is not a de Polignac number, because 495139984137 - 2³² = 490845016841 is a prime.

It is a super-2 number, since 2×495139984137² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495139984117) 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, 9169258939 + ... + 9169258992.

It is an arithmetic number, because the mean of its divisors is an integer number (91692589660).

Almost surely, 2^495139984137 is an apocalyptic number.

It is an amenable number.

495139984137 is a deficient number, since it is larger than the sum of its proper divisors (238400733143).

495139984137 is a wasteful number, since it uses less digits than its factorization.

495139984137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18338517940 (or 18338517934 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

It can be divided in two parts, 4951399 and 84137, that added together give a square (5035536 = 2244²).

The spelling of 495139984137 in words is "four hundred ninety-five billion, one hundred thirty-nine million, nine hundred eighty-four thousand, one hundred thirty-seven".