138251262625 has 32 divisors (see below), whose sum is σ = 199028793600. Its totient is φ = 93914812800.

The previous prime is 138251262577. The next prime is 138251262631. The reversal of 138251262625 is 526262152831.

It is not a de Polignac number, because 138251262625 - 2⁷ = 138251262497 is a prime.

It is a super-2 number, since 2×138251262625² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 644700 + ... + 831949.

It is an arithmetic number, because the mean of its divisors is an integer number (6219649800).

Almost surely, 2^138251262625 is an apocalyptic number.

It is an amenable number.

138251262625 is a deficient number, since it is larger than the sum of its proper divisors (60777530975).

138251262625 is a wasteful number, since it uses less digits than its factorization.

138251262625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476778 (or 1476768 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 138251262625 in words is "one hundred thirty-eight billion, two hundred fifty-one million, two hundred sixty-two thousand, six hundred twenty-five".