190249957856 has 24 divisors (see below), whose sum is σ = 428062405680. Its totient is φ = 81535696128.

The previous prime is 190249957837. The next prime is 190249957871. The reversal of 190249957856 is 658759942091.

It is a super-2 number, since 2×190249957856² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190249957792 and 190249957801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424664861 + ... + 424665308.

It is an arithmetic number, because the mean of its divisors is an integer number (17835933570).

Almost surely, 2^190249957856 is an apocalyptic number.

190249957856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

190249957856 is an abundant number, since it is smaller than the sum of its proper divisors (237812447824).

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

190249957856 is an equidigital number, since it uses as much as digits as its factorization.

190249957856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849330186 (or 849330178 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 190249957856 in words is "one hundred ninety billion, two hundred forty-nine million, nine hundred fifty-seven thousand, eight hundred fifty-six".