138357975510 has 48 divisors (see below), whose sum is σ = 362356540416. Its totient is φ = 36626146944.

The previous prime is 138357975499. The next prime is 138357975521. The reversal of 138357975510 is 15579753831.

It is a happy number.

138357975510 is a `hidden beast` number, since 1 + 3 + 8 + 3 + 57 + 9 + 75 + 510 = 666.

It is an interprime number because it is at equal distance from previous prime (138357975499) and next prime (138357975521).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5598294 + ... + 5622953.

It is an arithmetic number, because the mean of its divisors is an integer number (7549094592).

Almost surely, 2^138357975510 is an apocalyptic number.

138357975510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138357975510 is an abundant number, since it is smaller than the sum of its proper divisors (223998564906).

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

138357975510 is a wasteful number, since it uses less digits than its factorization.

138357975510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221397 (or 11221394 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 54.

The spelling of 138357975510 in words is "one hundred thirty-eight billion, three hundred fifty-seven million, nine hundred seventy-five thousand, five hundred ten".