139405428432 has 100 divisors (see below), whose sum is σ = 421022442720. Its totient is φ = 44448098112.

The previous prime is 139405428427. The next prime is 139405428433. The reversal of 139405428432 is 234824504931.

139405428432 is a `hidden beast` number, since 1 + 39 + 40 + 542 + 8 + 4 + 32 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139405428433) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2308582 + ... + 2368197.

Almost surely, 2^139405428432 is an apocalyptic number.

139405428432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139405428432 is an abundant number, since it is smaller than the sum of its proper divisors (281617014288).

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

139405428432 is a wasteful number, since it uses less digits than its factorization.

139405428432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676822 (or 4676807 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 139405428432 in words is "one hundred thirty-nine billion, four hundred five million, four hundred twenty-eight thousand, four hundred thirty-two".