17125998957 has 6 divisors (see below), whose sum is σ = 24737554062. Its totient is φ = 11417332632.

The previous prime is 17125998943. The next prime is 17125998977. The reversal of 17125998957 is 75989952171.

It can be written as a sum of positive squares in only one way, i.e., 11279714436 + 5846284521 = 106206^2 + 76461^2 .

It is a de Polignac number, because none of the positive numbers 2^k-17125998957 is a prime.

It is a super-4 number, since 4×17125998957⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 17125998894 and 17125998903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17125998937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 951444378 + ... + 951444395.

It is an arithmetic number, because the mean of its divisors is an integer number (4122925677).

Almost surely, 2^17125998957 is an apocalyptic number.

It is an amenable number.

17125998957 is a deficient number, since it is larger than the sum of its proper divisors (7611555105).

17125998957 is a wasteful number, since it uses less digits than its factorization.

17125998957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902888779 (or 1902888776 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 63.

The spelling of 17125998957 in words is "seventeen billion, one hundred twenty-five million, nine hundred ninety-eight thousand, nine hundred fifty-seven".