499694251392 has 448 divisors, whose sum is σ = 1745531842560. Its totient is φ = 139441720320.

The previous prime is 499694251387. The next prime is 499694251421. The reversal of 499694251392 is 293152496994.

499694251392 is a `hidden beast` number, since 499 + 6 + 9 + 4 + 2 + 5 + 139 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×499694251392² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 28078017 + ... + 28095807.

Almost surely, 2^499694251392 is an apocalyptic number.

499694251392 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499694251392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872765921280).

499694251392 is an abundant number, since it is smaller than the sum of its proper divisors (1245837591168).

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

499694251392 is an equidigital number, since it uses as much as digits as its factorization.

499694251392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17873 (or 17846 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The spelling of 499694251392 in words is "four hundred ninety-nine billion, six hundred ninety-four million, two hundred fifty-one thousand, three hundred ninety-two".