138291226750 has 64 divisors (see below), whose sum is σ = 267931250496. Its totient is φ = 53410560000.

The previous prime is 138291226741. The next prime is 138291226753. The reversal of 138291226750 is 57622192831.

It is a self number, because there is not a number n which added to its sum of digits gives 138291226750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138291226753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 924705 + ... + 1063795.

It is an arithmetic number, because the mean of its divisors is an integer number (4186425789).

Almost surely, 2^138291226750 is an apocalyptic number.

138291226750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138291226750 is a deficient number, since it is larger than the sum of its proper divisors (129640023746).

138291226750 is a wasteful number, since it uses less digits than its factorization.

138291226750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139246 (or 139236 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 138291226750 in words is "one hundred thirty-eight billion, two hundred ninety-one million, two hundred twenty-six thousand, seven hundred fifty".