138464748088 has 8 divisors (see below), whose sum is σ = 259621402680. Its totient is φ = 69232374040.

The previous prime is 138464748073. The next prime is 138464748157. The reversal of 138464748088 is 880847464831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×138464748088³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8654046748 + ... + 8654046763.

It is an arithmetic number, because the mean of its divisors is an integer number (32452675335).

Almost surely, 2^138464748088 is an apocalyptic number.

It is an amenable number.

138464748088 is a deficient number, since it is larger than the sum of its proper divisors (121156654592).

138464748088 is a wasteful number, since it uses less digits than its factorization.

138464748088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17308093517 (or 17308093513 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 61.

The spelling of 138464748088 in words is "one hundred thirty-eight billion, four hundred sixty-four million, seven hundred forty-eight thousand, eighty-eight".