190649636404 has 24 divisors (see below), whose sum is σ = 334278370440. Its totient is φ = 95141707776.

The previous prime is 190649636351. The next prime is 190649636461. The reversal of 190649636404 is 404636946091.

It can be written as a sum of positive squares in 4 ways, for example, as 6181104400 + 184468532004 = 78620^2 + 429498^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4501294 + ... + 4543450.

It is an arithmetic number, because the mean of its divisors is an integer number (13928265435).

Almost surely, 2^190649636404 is an apocalyptic number.

It is an amenable number.

190649636404 is a deficient number, since it is larger than the sum of its proper divisors (143628734036).

190649636404 is a wasteful number, since it uses less digits than its factorization.

190649636404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44307 (or 44305 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 190649636404 in words is "one hundred ninety billion, six hundred forty-nine million, six hundred thirty-six thousand, four hundred four".