495631820790 has 24 divisors (see below), whose sum is σ = 1288642734288. Its totient is φ = 132168485520.

The previous prime is 495631820773. The next prime is 495631820857. The reversal of 495631820790 is 97028136594.

495631820790 is a `hidden beast` number, since 4 + 9 + 563 + 1 + 8 + 2 + 0 + 79 + 0 = 666.

It is a super-2 number, since 2×495631820790² (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 11 ways as a sum of consecutive naturals, for example, 2753510026 + ... + 2753510205.

It is an arithmetic number, because the mean of its divisors is an integer number (53693447262).

It is a 1-persistent number, because it is pandigital, but 2⋅495631820790 = 991263641580 is not.

Almost surely, 2^495631820790 is an apocalyptic number.

495631820790 is an abundant number, since it is smaller than the sum of its proper divisors (793010913498).

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

495631820790 is a wasteful number, since it uses less digits than its factorization.

495631820790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507020244 (or 5507020241 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 495631820790 in words is "four hundred ninety-five billion, six hundred thirty-one million, eight hundred twenty thousand, seven hundred ninety".