99809948370 has 64 divisors (see below), whose sum is σ = 267397853184. Its totient is φ = 23633641920.

The previous prime is 99809948351. The next prime is 99809948377. The reversal of 99809948370 is 7384990899.

99809948370 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (99809948377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3502722 + ... + 3531101.

It is an arithmetic number, because the mean of its divisors is an integer number (4178091456).

Almost surely, 2^99809948370 is an apocalyptic number.

99809948370 is an abundant number, since it is smaller than the sum of its proper divisors (167587904814).

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

99809948370 is a wasteful number, since it uses less digits than its factorization.

99809948370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033887.

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

The spelling of 99809948370 in words is "ninety-nine billion, eight hundred nine million, nine hundred forty-eight thousand, three hundred seventy".