138448630958 has 8 divisors (see below), whose sum is σ = 226552305240. Its totient is φ = 62931195880.

The previous prime is 138448630951. The next prime is 138448630961. The reversal of 138448630958 is 859036844831.

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 = 138448630897 and 138448630906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138448630951) 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, 3146559773 + ... + 3146559816.

It is an arithmetic number, because the mean of its divisors is an integer number (28319038155).

Almost surely, 2^138448630958 is an apocalyptic number.

138448630958 is a deficient number, since it is larger than the sum of its proper divisors (88103674282).

138448630958 is a wasteful number, since it uses less digits than its factorization.

138448630958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293119602.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 138448630958 in words is "one hundred thirty-eight billion, four hundred forty-eight million, six hundred thirty thousand, nine hundred fifty-eight".