855641974452 has 48 divisors (see below), whose sum is σ = 2002296360960. Its totient is φ = 284386686688.

The previous prime is 855641974427. The next prime is 855641974457. The reversal of 855641974452 is 254479146558.

855641974452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855641974457) 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, 6593449 + ... + 6721967.

It is an arithmetic number, because the mean of its divisors is an integer number (41714507520).

Almost surely, 2^855641974452 is an apocalyptic number.

It is an amenable number.

855641974452 is an abundant number, since it is smaller than the sum of its proper divisors (1146654386508).

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

855641974452 is a wasteful number, since it uses less digits than its factorization.

855641974452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130132 (or 130130 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 60.

The spelling of 855641974452 in words is "eight hundred fifty-five billion, six hundred forty-one million, nine hundred seventy-four thousand, four hundred fifty-two".