2897172655559 has 8 divisors (see below), whose sum is σ = 3565750960800. Its totient is φ = 2292268474656.

The previous prime is 2897172655537. The next prime is 2897172655561. The reversal of 2897172655559 is 9555562717982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2897172655559 - 2²⁸ = 2896904220103 is a prime.

It is a super-2 number, since 2×2897172655559² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2897172655492 and 2897172655501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897172655519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15918530984 + ... + 15918531165.

It is an arithmetic number, because the mean of its divisors is an integer number (445718870100).

Almost surely, 2^{2897172655559} is an apocalyptic number.

2897172655559 is a deficient number, since it is larger than the sum of its proper divisors (668578305241).

2897172655559 is a wasteful number, since it uses less digits than its factorization.

2897172655559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31837062169.

The product of its digits is 476280000, while the sum is 71.

The spelling of 2897172655559 in words is "two trillion, eight hundred ninety-seven billion, one hundred seventy-two million, six hundred fifty-five thousand, five hundred fifty-nine".