497509390781400 has 96 divisors (see below), whose sum is σ = 1544185514797200. Its totient is φ = 132505179187200.

The previous prime is 497509390781363. The next prime is 497509390781503. The reversal of 497509390781400 is 4187093905794.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 511988221 + ... + 512959020.

Almost surely, 2^{497509390781400} is an apocalyptic number.

497509390781400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497509390781400 is an abundant number, since it is smaller than the sum of its proper divisors (1046676124015800).

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

497509390781400 is a wasteful number, since it uses less digits than its factorization.

497509390781400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024948069 (or 1024948060 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 497509390781400 in words is "four hundred ninety-seven trillion, five hundred nine billion, three hundred ninety million, seven hundred eighty-one thousand, four hundred".