853378518330 has 64 divisors (see below), whose sum is σ = 2450728062720. Its totient is φ = 210062403648.

The previous prime is 853378518313. The next prime is 853378518437. The reversal of 853378518330 is 33815873358.

853378518330 is a `hidden beast` number, since 8 + 53 + 3 + 78 + 518 + 3 + 3 + 0 = 666.

853378518330 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×853378518330² (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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121560382 + ... + 121567401.

It is an arithmetic number, because the mean of its divisors is an integer number (38292625980).

Almost surely, 2^853378518330 is an apocalyptic number.

853378518330 is an abundant number, since it is smaller than the sum of its proper divisors (1597349544390).

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

853378518330 is a wasteful number, since it uses less digits than its factorization.

853378518330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243127812 (or 243127806 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 853378518330 in words is "eight hundred fifty-three billion, three hundred seventy-eight million, five hundred eighteen thousand, three hundred thirty".