139867646609412 has 108 divisors (see below), whose sum is σ = 369813738201180. Its totient is φ = 46282237104384.

The previous prime is 139867646609399. The next prime is 139867646609429. The reversal of 139867646609412 is 214906646768931.

139867646609412 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 6 + 7 + 6 + 4 + 6 + 609 + 4 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32126858819136 + 107740787790276 = 5668056^2 + 10379826^2 .

It is a tau number, because it is divible by the number of its divisors (108).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15855337 + ... + 23046192.

Almost surely, 2^{139867646609412} is an apocalyptic number.

139867646609412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139867646609412 is an abundant number, since it is smaller than the sum of its proper divisors (229946091591768).

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

139867646609412 is an equidigital number, since it uses as much as digits as its factorization.

139867646609412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38901694 (or 38901671 counting only the distinct ones).

The product of its (nonzero) digits is 564350976, while the sum is 72.

The spelling of 139867646609412 in words is "one hundred thirty-nine trillion, eight hundred sixty-seven billion, six hundred forty-six million, six hundred nine thousand, four hundred twelve".