854297215524 has 45 divisors (see below), whose sum is σ = 2233345164897. Its totient is φ = 284760192816.

The previous prime is 854297215507. The next prime is 854297215529. The reversal of 854297215524 is 425512792458.

The square root of 854297215524 is 924282.

It is a perfect power (a square), and thus also a powerful number.

854297215524 is a `hidden beast` number, since 8 + 5 + 4 + 2 + 97 + 21 + 5 + 524 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71921585124 + 782375630400 = 268182^2 + 884520^2 .

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

It is not an unprimeable number, because it can be changed into a prime (854297215529) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 16611402 + ... + 16662750.

Almost surely, 2^854297215524 is an apocalyptic number.

854297215524 is the 924282-nd square number.

It is an amenable number.

854297215524 is an abundant number, since it is smaller than the sum of its proper divisors (1379047949373).

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

854297215524 is an frugal number, since it uses more digits than its factorization.

854297215524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102714 (or 51354 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 854297215524 in words is "eight hundred fifty-four billion, two hundred ninety-seven million, two hundred fifteen thousand, five hundred twenty-four".