138880072412 has 12 divisors (see below), whose sum is σ = 243045934656. Its totient is φ = 69438376800.

The previous prime is 138880072411. The next prime is 138880072423. The reversal of 138880072412 is 214270088831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138880072411) 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, 215948 + ... + 569555.

It is an arithmetic number, because the mean of its divisors is an integer number (20253827888).

Almost surely, 2^138880072412 is an apocalyptic number.

It is an amenable number.

138880072412 is a deficient number, since it is larger than the sum of its proper divisors (104165862244).

138880072412 is a wasteful number, since it uses less digits than its factorization.

138880072412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829708 (or 829706 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 138880072412 in words is "one hundred thirty-eight billion, eight hundred eighty million, seventy-two thousand, four hundred twelve".