8078991099432 has 128 divisors (see below), whose sum is σ = 22992935132160. Its totient is φ = 2341600081920.

The previous prime is 8078991099337. The next prime is 8078991099451. The reversal of 8078991099432 is 2349901998708.

It is a super-2 number, since 2×8078991099432² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155617623 + ... + 155669529.

It is an arithmetic number, because the mean of its divisors is an integer number (179632305720).

Almost surely, 2^{8078991099432} is an apocalyptic number.

It is an amenable number.

8078991099432 is an abundant number, since it is smaller than the sum of its proper divisors (14913944032728).

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

8078991099432 is a wasteful number, since it uses less digits than its factorization.

8078991099432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77583 (or 77579 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 69.

The spelling of 8078991099432 in words is "eight trillion, seventy-eight billion, nine hundred ninety-one million, ninety-nine thousand, four hundred thirty-two".