204967591490 has 16 divisors (see below), whose sum is σ = 380843009280. Its totient is φ = 79342293360.

The previous prime is 204967591481. The next prime is 204967591501. The reversal of 204967591490 is 94195769402.

204967591490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204967591490² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 330592580 + ... + 330593199.

It is an arithmetic number, because the mean of its divisors is an integer number (23802688080).

Almost surely, 2^204967591490 is an apocalyptic number.

204967591490 is a deficient number, since it is larger than the sum of its proper divisors (175875417790).

204967591490 is a wasteful number, since it uses less digits than its factorization.

204967591490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661185817.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 204967591490 in words is "two hundred four billion, nine hundred sixty-seven million, five hundred ninety-one thousand, four hundred ninety".