138412950774390 has 96 divisors (see below), whose sum is σ = 369869977732320. Its totient is φ = 35912548207296.

The previous prime is 138412950774359. The next prime is 138412950774407. The reversal of 138412950774390 is 93477059214831.

138412950774390 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 1 + 29 + 507 + 74 + 39 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10622184 + ... + 19739723.

It is an arithmetic number, because the mean of its divisors is an integer number (3852812268045).

Almost surely, 2^{138412950774390} is an apocalyptic number.

138412950774390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138412950774390 is an abundant number, since it is smaller than the sum of its proper divisors (231457026957930).

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

138412950774390 is an equidigital number, since it uses as much as digits as its factorization.

138412950774390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30362031 (or 30361954 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 138412950774390 in words is "one hundred thirty-eight trillion, four hundred twelve billion, nine hundred fifty million, seven hundred seventy-four thousand, three hundred ninety".