900087000090 has 32 divisors (see below), whose sum is σ = 2166328397376. Its totient is φ = 239343244800.

The previous prime is 900087000041. The next prime is 900087000097. The reversal of 900087000090 is 90000780009.

It is not an unprimeable number, because it can be changed into a prime (900087000097) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42486436 + ... + 42507615.

It is an arithmetic number, because the mean of its divisors is an integer number (67697762418).

Almost surely, 2^900087000090 is an apocalyptic number.

900087000090 is an abundant number, since it is smaller than the sum of its proper divisors (1266241397286).

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

900087000090 is a wasteful number, since it uses less digits than its factorization.

900087000090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84994414.

The product of its (nonzero) digits is 4536, while the sum is 33.

Adding to 900087000090 its reverse (90000780009), we get a palindrome (990087780099).

The spelling of 900087000090 in words is "nine hundred billion, eighty-seven million, ninety", and thus it is an aban number.