204026251090 has 32 divisors (see below), whose sum is σ = 369258087744. Its totient is φ = 81164616000.

The previous prime is 204026251069. The next prime is 204026251097. The reversal of 204026251090 is 90152620402.

It is a super-2 number, since 2×204026251090² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204026251097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1639237 + ... + 1759303.

It is an arithmetic number, because the mean of its divisors is an integer number (11539315242).

Almost surely, 2^204026251090 is an apocalyptic number.

204026251090 is a deficient number, since it is larger than the sum of its proper divisors (165231836654).

204026251090 is a wasteful number, since it uses less digits than its factorization.

204026251090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121002.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 204026251090 its reverse (90152620402), we get a palindrome (294178871492).

The spelling of 204026251090 in words is "two hundred four billion, twenty-six million, two hundred fifty-one thousand, ninety".