495598134032639 has 4 divisors (see below), whose sum is σ = 540652509853800. Its totient is φ = 450543758211480.

The previous prime is 495598134032629. The next prime is 495598134032653. The reversal of 495598134032639 is 936230431895594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 495598134032639 - 2⁴ = 495598134032623 is a prime.

It is a super-2 number, since 2×495598134032639² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495598134032629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22527187910564 + ... + 22527187910585.

It is an arithmetic number, because the mean of its divisors is an integer number (135163127463450).

Almost surely, 2^{495598134032639} is an apocalyptic number.

495598134032639 is a deficient number, since it is larger than the sum of its proper divisors (45054375821161).

495598134032639 is a wasteful number, since it uses less digits than its factorization.

495598134032639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45054375821160.

The product of its (nonzero) digits is 755827200, while the sum is 71.

The spelling of 495598134032639 in words is "four hundred ninety-five trillion, five hundred ninety-eight billion, one hundred thirty-four million, thirty-two thousand, six hundred thirty-nine".