190191552904 has 32 divisors (see below), whose sum is σ = 369369181440. Its totient is φ = 91714046400.

The previous prime is 190191552877. The next prime is 190191552907. The reversal of 190191552904 is 409255191091.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (190191552907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236042 + ... + 1381369.

It is an arithmetic number, because the mean of its divisors is an integer number (11542786920).

Almost surely, 2^190191552904 is an apocalyptic number.

It is an amenable number.

190191552904 is a deficient number, since it is larger than the sum of its proper divisors (179177628536).

190191552904 is a wasteful number, since it uses less digits than its factorization.

190191552904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617741 (or 2617737 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 46.

The spelling of 190191552904 in words is "one hundred ninety billion, one hundred ninety-one million, five hundred fifty-two thousand, nine hundred four".