10393071138 has 18 divisors (see below), whose sum is σ = 22519257969. Its totient is φ = 3464212872.

The previous prime is 10393071137. The next prime is 10393071149. The reversal of 10393071138 is 83117039301.

It can be written as a sum of positive squares in 2 ways, for example, as 5464609929 + 4928461209 = 73923^2 + 70203^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=72087.

It is not an unprimeable number, because it can be changed into a prime (10393071133) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 420508 + ... + 444536.

Almost surely, 2^10393071138 is an apocalyptic number.

10393071138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10393071138 is an abundant number, since it is smaller than the sum of its proper divisors (12126186831).

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

10393071138 is an frugal number, since it uses more digits than its factorization.

10393071138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48066 (or 24034 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 10393071138 in words is "ten billion, three hundred ninety-three million, seventy-one thousand, one hundred thirty-eight".