190825899678 has 32 divisors (see below), whose sum is σ = 424177132800. Its totient is φ = 63590696568.

The previous prime is 190825899637. The next prime is 190825899709. The reversal of 190825899678 is 876998528091.

190825899678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304276 + ... + 688647.

It is an arithmetic number, because the mean of its divisors is an integer number (13255535400).

Almost surely, 2^190825899678 is an apocalyptic number.

190825899678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

190825899678 is an abundant number, since it is smaller than the sum of its proper divisors (233351233122).

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

190825899678 is a wasteful number, since it uses less digits than its factorization.

190825899678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996493 (or 996487 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 72.

The spelling of 190825899678 in words is "one hundred ninety billion, eight hundred twenty-five million, eight hundred ninety-nine thousand, six hundred seventy-eight".