853477696764 has 216 divisors, whose sum is σ = 2713279587200. Its totient is φ = 221424477120.

The previous prime is 853477696691. The next prime is 853477696867. The reversal of 853477696764 is 467696774358.

853477696764 is a `hidden beast` number, since 8 + 5 + 3 + 477 + 6 + 96 + 7 + 64 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 853477696692 and 853477696701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26908587 + ... + 26940285.

Almost surely, 2^853477696764 is an apocalyptic number.

853477696764 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853477696764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356639793600).

853477696764 is an abundant number, since it is smaller than the sum of its proper divisors (1859801890436).

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

853477696764 is a wasteful number, since it uses less digits than its factorization.

853477696764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32621 (or 32605 counting only the distinct ones).

The product of its digits is 1280240640, while the sum is 72.

The spelling of 853477696764 in words is "eight hundred fifty-three billion, four hundred seventy-seven million, six hundred ninety-six thousand, seven hundred sixty-four".