1017807906838 has 32 divisors (see below), whose sum is σ = 1619260473600. Its totient is φ = 478463648544.

The previous prime is 1017807906827. The next prime is 1017807906851. The reversal of 1017807906838 is 8386097087101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13945056 + ... + 14017852.

It is an arithmetic number, because the mean of its divisors is an integer number (50601889800).

Almost surely, 2^{1017807906838} is an apocalyptic number.

1017807906838 is a deficient number, since it is larger than the sum of its proper divisors (601452566762).

1017807906838 is a wasteful number, since it uses less digits than its factorization.

1017807906838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75604.

The product of its (nonzero) digits is 4064256, while the sum is 58.

The spelling of 1017807906838 in words is "one trillion, seventeen billion, eight hundred seven million, nine hundred six thousand, eight hundred thirty-eight".