99980493870 has 64 divisors (see below), whose sum is σ = 249909566976. Its totient is φ = 25575500160.

The previous prime is 99980493817. The next prime is 99980493881. The reversal of 99980493870 is 7839408999.

99980493870 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555504 + ... + 713123.

It is an arithmetic number, because the mean of its divisors is an integer number (3904836984).

Almost surely, 2^99980493870 is an apocalyptic number.

99980493870 is an abundant number, since it is smaller than the sum of its proper divisors (149929073106).

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

99980493870 is a wasteful number, since it uses less digits than its factorization.

99980493870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268745.

The product of its (nonzero) digits is 35271936, while the sum is 66.

The spelling of 99980493870 in words is "ninety-nine billion, nine hundred eighty million, four hundred ninety-three thousand, eight hundred seventy".