10138685381515 has 32 divisors (see below), whose sum is σ = 12507181933824. Its totient is φ = 7886072663040.

The previous prime is 10138685381471. The next prime is 10138685381521. The reversal of 10138685381515 is 51518358683101.

It is not a de Polignac number, because 10138685381515 - 2¹⁵ = 10138685348747 is a prime.

It is a super-2 number, since 2×10138685381515² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182122785 + ... + 182178445.

It is an arithmetic number, because the mean of its divisors is an integer number (390849435432).

Almost surely, 2^{10138685381515} is an apocalyptic number.

10138685381515 is a deficient number, since it is larger than the sum of its proper divisors (2368496552309).

10138685381515 is a wasteful number, since it uses less digits than its factorization.

10138685381515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60807.

The product of its (nonzero) digits is 3456000, while the sum is 55.

The spelling of 10138685381515 in words is "ten trillion, one hundred thirty-eight billion, six hundred eighty-five million, three hundred eighty-one thousand, five hundred fifteen".