138750062638 has 8 divisors (see below), whose sum is σ = 227045557080. Its totient is φ = 63068210280.

The previous prime is 138750062617. The next prime is 138750062639. The reversal of 138750062638 is 836260057831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 138750062591 and 138750062600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138750062639) 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, 3153410493 + ... + 3153410536.

It is an arithmetic number, because the mean of its divisors is an integer number (28380694635).

Almost surely, 2^138750062638 is an apocalyptic number.

138750062638 is a deficient number, since it is larger than the sum of its proper divisors (88295494442).

138750062638 is a wasteful number, since it uses less digits than its factorization.

138750062638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306821042.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 138750062638 in words is "one hundred thirty-eight billion, seven hundred fifty million, sixty-two thousand, six hundred thirty-eight".