84139832408 has 48 divisors (see below), whose sum is σ = 167151817080. Its totient is φ = 39700279296.

The previous prime is 84139832401. The next prime is 84139832411. The reversal of 84139832408 is 80423893148.

It is a super-2 number, since 2×84139832408² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84139832401) 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, 685535 + ... + 798897.

Almost surely, 2^84139832408 is an apocalyptic number.

It is an amenable number.

84139832408 is a deficient number, since it is larger than the sum of its proper divisors (83011984672).

84139832408 is a wasteful number, since it uses less digits than its factorization.

84139832408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113664 (or 113641 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 84139832408 in words is "eighty-four billion, one hundred thirty-nine million, eight hundred thirty-two thousand, four hundred eight".