84380198139 has 12 divisors (see below), whose sum is σ = 129052067976. Its totient is φ = 52944437952.

The previous prime is 84380198137. The next prime is 84380198167. The reversal of 84380198139 is 93189108348.

84380198139 is a `hidden beast` number, since 8 + 438 + 0 + 198 + 13 + 9 = 666.

It is not a de Polignac number, because 84380198139 - 2¹ = 84380198137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84380198137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275752129 + ... + 275752434.

It is an arithmetic number, because the mean of its divisors is an integer number (10754338998).

Almost surely, 2^84380198139 is an apocalyptic number.

84380198139 is a deficient number, since it is larger than the sum of its proper divisors (44671869837).

84380198139 is a wasteful number, since it uses less digits than its factorization.

84380198139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551504586 (or 551504583 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 84380198139 in words is "eighty-four billion, three hundred eighty million, one hundred ninety-eight thousand, one hundred thirty-nine".