138880770363766 has 16 divisors (see below), whose sum is σ = 217446464507904. Its totient is φ = 66400500733864.

The previous prime is 138880770363719. The next prime is 138880770363781. The reversal of 138880770363766 is 667363077088831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471152566 + ... + 471447241.

It is an arithmetic number, because the mean of its divisors is an integer number (13590404031744).

Almost surely, 2^{138880770363766} is an apocalyptic number.

138880770363766 is a deficient number, since it is larger than the sum of its proper divisors (78565694144138).

138880770363766 is a wasteful number, since it uses less digits than its factorization.

138880770363766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942603035.

The product of its (nonzero) digits is 1024192512, while the sum is 73.

The spelling of 138880770363766 in words is "one hundred thirty-eight trillion, eight hundred eighty billion, seven hundred seventy million, three hundred sixty-three thousand, seven hundred sixty-six".