17971472553 has 16 divisors (see below), whose sum is σ = 24107345856. Its totient is φ = 11908411200.

The previous prime is 17971472543. The next prime is 17971472557. The reversal of 17971472553 is 35527417971.

It is not a de Polignac number, because 17971472553 - 2⁴ = 17971472537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17971472496 and 17971472505.

It is not an unprimeable number, because it can be changed into a prime (17971472557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606675 + ... + 635607.

It is an arithmetic number, because the mean of its divisors is an integer number (1506709116).

Almost surely, 2^17971472553 is an apocalyptic number.

It is an amenable number.

17971472553 is a deficient number, since it is larger than the sum of its proper divisors (6135873303).

17971472553 is a wasteful number, since it uses less digits than its factorization.

17971472553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30184.

The product of its digits is 1852200, while the sum is 51.

The spelling of 17971472553 in words is "seventeen billion, nine hundred seventy-one million, four hundred seventy-two thousand, five hundred fifty-three".