190994971231008 has 72 divisors (see below), whose sum is σ = 620733656507328. Its totient is φ = 54569991779712.

The previous prime is 190994971230997. The next prime is 190994971231027. The reversal of 190994971231008 is 800132179499091.

It is a happy number.

190994971231008 is a `hidden beast` number, since 1 + 9 + 0 + 9 + 9 + 497 + 123 + 10 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47369782516 + ... + 47369786547.

It is an arithmetic number, because the mean of its divisors is an integer number (8621300784824).

Almost surely, 2^{190994971231008} is an apocalyptic number.

190994971231008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

190994971231008 is an abundant number, since it is smaller than the sum of its proper divisors (429738685276320).

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

190994971231008 is a wasteful number, since it uses less digits than its factorization.

190994971231008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94739569086 (or 94739569075 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 63.

The spelling of 190994971231008 in words is "one hundred ninety trillion, nine hundred ninety-four billion, nine hundred seventy-one million, two hundred thirty-one thousand, eight".