138262016740 has 12 divisors (see below), whose sum is σ = 290350235196. Its totient is φ = 55304806688.

The previous prime is 138262016699. The next prime is 138262016743. The reversal of 138262016740 is 47610262831.

It can be written as a sum of positive squares in 2 ways, for example, as 44704336356 + 93557680384 = 211434^2 + 305872^2 .

It is a junction number, because it is equal to n+sod(n) for n = 138262016693 and 138262016702.

It is not an unprimeable number, because it can be changed into a prime (138262016743) 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, 3456550399 + ... + 3456550438.

It is an arithmetic number, because the mean of its divisors is an integer number (24195852933).

Almost surely, 2^138262016740 is an apocalyptic number.

138262016740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138262016740 is an abundant number, since it is smaller than the sum of its proper divisors (152088218456).

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

138262016740 is a wasteful number, since it uses less digits than its factorization.

138262016740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913100846 (or 6913100844 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 138262016740 in words is "one hundred thirty-eight billion, two hundred sixty-two million, sixteen thousand, seven hundred forty".