138283501488 has 160 divisors (see below), whose sum is σ = 395576324352. Its totient is φ = 41277849600.

The previous prime is 138283501471. The next prime is 138283501529. The reversal of 138283501488 is 884105382831.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 138283501488.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9468720 + ... + 9483312.

Almost surely, 2^138283501488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138283501488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197788162176).

138283501488 is an abundant number, since it is smaller than the sum of its proper divisors (257292822864).

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

138283501488 is a wasteful number, since it uses less digits than its factorization.

138283501488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14883 (or 14877 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 138283501488 in words is "one hundred thirty-eight billion, two hundred eighty-three million, five hundred one thousand, four hundred eighty-eight".