138897253049000 has 32 divisors (see below), whose sum is σ = 325019572137000. Its totient is φ = 55558901219200.

The previous prime is 138897253048987. The next prime is 138897253049033. The reversal of 138897253049000 is 940352798831.

It can be written as a sum of positive squares in 4 ways, for example, as 47242555315684 + 91654697733316 = 6873322^2 + 9573646^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69448625525 + ... + 69448627524.

Almost surely, 2^{138897253049000} is an apocalyptic number.

138897253049000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138897253049000 is an abundant number, since it is smaller than the sum of its proper divisors (186122319088000).

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

138897253049000 is a wasteful number, since it uses less digits than its factorization.

138897253049000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138897253070 (or 138897253056 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 138897253049000 in words is "one hundred thirty-eight trillion, eight hundred ninety-seven billion, two hundred fifty-three million, forty-nine thousand".