897957759798 has 48 divisors (see below), whose sum is σ = 2247295364496. Its totient is φ = 256102033920.

The previous prime is 897957759779. The next prime is 897957759847.

897957759798 is a `hidden beast` number, since 8 + 9 + 7 + 9 + 5 + 7 + 7 + 597 + 9 + 8 = 666.

897957759798 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133383111 + ... + 133389842.

It is an arithmetic number, because the mean of its divisors is an integer number (46818653427).

Almost surely, 2^897957759798 is an apocalyptic number.

897957759798 is an abundant number, since it is smaller than the sum of its proper divisors (1349337604698).

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

897957759798 is a wasteful number, since it uses less digits than its factorization.

897957759798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266772989 (or 266772986 counting only the distinct ones).

The product of its digits is 25204737600, while the sum is 90.

The spelling of 897957759798 in words is "eight hundred ninety-seven billion, nine hundred fifty-seven million, seven hundred fifty-nine thousand, seven hundred ninety-eight".