1990100011010 has 16 divisors (see below), whose sum is σ = 3792896491896. Its totient is φ = 749214121728.

The previous prime is 1990100010973. The next prime is 1990100011033. The reversal of 1990100011010 is 101100010991.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1600672841329 + 389427169681 = 1265177^2 + 624041^2 .

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, 5853235157 + ... + 5853235496.

Almost surely, 2^{1990100011010} is an apocalyptic number.

1990100011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1990100011010 is a deficient number, since it is larger than the sum of its proper divisors (1802796480886).

1990100011010 is a wasteful number, since it uses less digits than its factorization.

1990100011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706470677.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 1990100011010 in words is "one trillion, nine hundred ninety billion, one hundred million, eleven thousand, ten".