17138998516922 has 16 divisors (see below), whose sum is σ = 26140868330472. Its totient is φ = 8425493157120.

The previous prime is 17138998516891. The next prime is 17138998517021. The reversal of 17138998516922 is 22961589983171.

It can be written as a sum of positive squares in 4 ways, for example, as 5808914608561 + 11330083908361 = 2410169^2 + 3366019^2 .

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, 29061083 + ... + 29644974.

Almost surely, 2^{17138998516922} is an apocalyptic number.

17138998516922 is a deficient number, since it is larger than the sum of its proper divisors (9001869813550).

17138998516922 is a wasteful number, since it uses less digits than its factorization.

17138998516922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58708513.

The product of its digits is 117573120, while the sum is 71.

The spelling of 17138998516922 in words is "seventeen trillion, one hundred thirty-eight billion, nine hundred ninety-eight million, five hundred sixteen thousand, nine hundred twenty-two".