495581518704 has 80 divisors (see below), whose sum is σ = 1308304977408. Its totient is φ = 161578507776.

The previous prime is 495581518687. The next prime is 495581518709. The reversal of 495581518704 is 407815185594.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495581518709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3603004 + ... + 3738020.

Almost surely, 2^495581518704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 495581518704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654152488704).

495581518704 is an abundant number, since it is smaller than the sum of its proper divisors (812723458704).

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

495581518704 is a wasteful number, since it uses less digits than its factorization.

495581518704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136702 (or 136696 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 57.

The spelling of 495581518704 in words is "four hundred ninety-five billion, five hundred eighty-one million, five hundred eighteen thousand, seven hundred four".