139681288432 has 20 divisors (see below), whose sum is σ = 309294281776. Its totient is φ = 59863409280.

The previous prime is 139681288427. The next prime is 139681288433. The reversal of 139681288432 is 234882186931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139681288433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623577069 + ... + 623577292.

Almost surely, 2^139681288432 is an apocalyptic number.

It is an amenable number.

139681288432 is an abundant number, since it is smaller than the sum of its proper divisors (169612993344).

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

139681288432 is a wasteful number, since it uses less digits than its factorization.

139681288432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247154376 (or 1247154370 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The spelling of 139681288432 in words is "one hundred thirty-nine billion, six hundred eighty-one million, two hundred eighty-eight thousand, four hundred thirty-two".