99910000980 has 36 divisors (see below), whose sum is σ = 303060336852. Its totient is φ = 26642666880.

The previous prime is 99910000951. The next prime is 99910000999. The reversal of 99910000980 is 8900001999.

It can be written as a sum of positive squares in 2 ways, for example, as 66381461316 + 33528539664 = 257646^2 + 183108^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277527601 + ... + 277527960.

Almost surely, 2^99910000980 is an apocalyptic number.

99910000980 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99910000980 is an abundant number, since it is smaller than the sum of its proper divisors (203150335872).

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

99910000980 is a wasteful number, since it uses less digits than its factorization.

99910000980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555055576 (or 555055571 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 99910000980 in words is "ninety-nine billion, nine hundred ten million, nine hundred eighty", and thus it is an aban number.