496138736640 has 88 divisors (see below), whose sum is σ = 1586868789600. Its totient is φ = 132303659008.

The previous prime is 496138736623. The next prime is 496138736641. The reversal of 496138736640 is 46637831694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (496138736641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16134990 + ... + 16165709.

Almost surely, 2^496138736640 is an apocalyptic number.

496138736640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

496138736640 is an abundant number, since it is smaller than the sum of its proper divisors (1090730052960).

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

496138736640 is a wasteful number, since it uses less digits than its factorization.

496138736640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32300727 (or 32300709 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 496138736640 in words is "four hundred ninety-six billion, one hundred thirty-eight million, seven hundred thirty-six thousand, six hundred forty".