138465548370 has 48 divisors (see below), whose sum is σ = 360581113152. Its totient is φ = 36865614240.

The previous prime is 138465548363. The next prime is 138465548371. The reversal of 138465548370 is 73845564831.

138465548370 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 6 + 554 + 83 + 7 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (138465548371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1162312 + ... + 1275891.

It is an arithmetic number, because the mean of its divisors is an integer number (7512106524).

Almost surely, 2^138465548370 is an apocalyptic number.

138465548370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138465548370 is an abundant number, since it is smaller than the sum of its proper divisors (222115564782).

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

138465548370 is a wasteful number, since it uses less digits than its factorization.

138465548370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438847 (or 2438844 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 138465548370 in words is "one hundred thirty-eight billion, four hundred sixty-five million, five hundred forty-eight thousand, three hundred seventy".