90090100010 has 16 divisors (see below), whose sum is σ = 169212710016. Its totient is φ = 34469255568.

The previous prime is 90090100003. The next prime is 90090100013. The reversal of 90090100010 is 1000109009.

It is a super-2 number, since 2×90090100010² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90090100013) 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, 195847814 + ... + 195848273.

It is an arithmetic number, because the mean of its divisors is an integer number (10575794376).

Almost surely, 2^90090100010 is an apocalyptic number.

90090100010 is a deficient number, since it is larger than the sum of its proper divisors (79122610006).

90090100010 is a wasteful number, since it uses less digits than its factorization.

90090100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391696117.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 90090100010 its reverse (1000109009), we get a palindrome (91090209019).

The spelling of 90090100010 in words is "ninety billion, ninety million, one hundred thousand, ten".