897570139871 has 8 divisors (see below), whose sum is σ = 921456608688. Its totient is φ = 873778648000.

The previous prime is 897570139813. The next prime is 897570139889. The reversal of 897570139871 is 178931075798.

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 897570139871 - 2³⁴ = 880390270687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 897570139798 and 897570139807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897570139171) 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, 23725085 + ... + 23762886.

It is an arithmetic number, because the mean of its divisors is an integer number (115182076086).

Almost surely, 2^897570139871 is an apocalyptic number.

897570139871 is a deficient number, since it is larger than the sum of its proper divisors (23886468817).

897570139871 is a wasteful number, since it uses less digits than its factorization.

897570139871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47488473.

The product of its (nonzero) digits is 26671680, while the sum is 65.

The spelling of 897570139871 in words is "eight hundred ninety-seven billion, five hundred seventy million, one hundred thirty-nine thousand, eight hundred seventy-one".