897070970520 has 128 divisors (see below), whose sum is σ = 2990777400000. Its totient is φ = 239175659520.

The previous prime is 897070970519. The next prime is 897070970527. The reversal of 897070970520 is 25079070798.

897070970520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×897070970520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897070970527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6136680 + ... + 6281160.

Almost surely, 2^897070970520 is an apocalyptic number.

It is an amenable number.

897070970520 is an abundant number, since it is smaller than the sum of its proper divisors (2093706429480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897070970520 is a wasteful number, since it uses less digits than its factorization.

897070970520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150250 (or 150240 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The spelling of 897070970520 in words is "eight hundred ninety-seven billion, seventy million, nine hundred seventy thousand, five hundred twenty".