897018815040 has 56 divisors (see below), whose sum is σ = 2848034740800. Its totient is φ = 239205017088.

The previous prime is 897018815023. The next prime is 897018815053. The reversal of 897018815040 is 40518810798.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467196340 + ... + 467198259.

Almost surely, 2^897018815040 is an apocalyptic number.

897018815040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

897018815040 is an abundant number, since it is smaller than the sum of its proper divisors (1951015925760).

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

897018815040 is a wasteful number, since it uses less digits than its factorization.

897018815040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934394619 (or 934394609 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 897018815040 in words is "eight hundred ninety-seven billion, eighteen million, eight hundred fifteen thousand, forty".