855943550292 has 48 divisors (see below), whose sum is σ = 2015054237952. Its totient is φ = 282764590080.

The previous prime is 855943550281. The next prime is 855943550299. The reversal of 855943550292 is 292055349558.

It is a super-2 number, since 2×855943550292² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855943550299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21319317 + ... + 21359427.

It is an arithmetic number, because the mean of its divisors is an integer number (41980296624).

Almost surely, 2^855943550292 is an apocalyptic number.

It is an amenable number.

855943550292 is an abundant number, since it is smaller than the sum of its proper divisors (1159110687660).

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

855943550292 is a wasteful number, since it uses less digits than its factorization.

855943550292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55968 (or 55966 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 57.

The spelling of 855943550292 in words is "eight hundred fifty-five billion, nine hundred forty-three million, five hundred fifty thousand, two hundred ninety-two".