99994375380 has 24 divisors (see below), whose sum is σ = 279984251232. Its totient is φ = 26665166752.

The previous prime is 99994375379. The next prime is 99994375391. The reversal of 99994375380 is 8357349999.

It is a happy number.

It is a congruent number.

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, 833286402 + ... + 833286521.

It is an arithmetic number, because the mean of its divisors is an integer number (11666010468).

Almost surely, 2^99994375380 is an apocalyptic number.

It is an amenable number.

99994375380 is an abundant number, since it is smaller than the sum of its proper divisors (179989875852).

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

99994375380 is a wasteful number, since it uses less digits than its factorization.

99994375380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666572935 (or 1666572933 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 99994375380 in words is "ninety-nine billion, nine hundred ninety-four million, three hundred seventy-five thousand, three hundred eighty".