138880770363768 has 64 divisors (see below), whose sum is σ = 372371479689600. Its totient is φ = 43029593193600.

The previous prime is 138880770363719. The next prime is 138880770363781. The reversal of 138880770363768 is 867363077088831.

It is a self number, because there is not a number n which added to its sum of digits gives 138880770363768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2873212558 + ... + 2873260893.

It is an arithmetic number, because the mean of its divisors is an integer number (5818304370150).

Almost surely, 2^{138880770363768} is an apocalyptic number.

It is an amenable number.

138880770363768 is an abundant number, since it is smaller than the sum of its proper divisors (233490709325832).

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

138880770363768 is a wasteful number, since it uses less digits than its factorization.

138880770363768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746473532 (or 5746473528 counting only the distinct ones).

The product of its (nonzero) digits is 1365590016, while the sum is 75.

The spelling of 138880770363768 in words is "one hundred thirty-eight trillion, eight hundred eighty billion, seven hundred seventy million, three hundred sixty-three thousand, seven hundred sixty-eight".