855077190426 has 96 divisors (see below), whose sum is σ = 1957782528000. Its totient is φ = 268972920864.

The previous prime is 855077190421. The next prime is 855077190467. The reversal of 855077190426 is 624091770558.

855077190426 is a `hidden beast` number, since 8 + 5 + 507 + 7 + 1 + 90 + 42 + 6 = 666.

855077190426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×855077190426² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855077190421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127562991 + ... + 127569693.

It is an arithmetic number, because the mean of its divisors is an integer number (20393568000).

Almost surely, 2^855077190426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855077190426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978891264000).

855077190426 is an abundant number, since it is smaller than the sum of its proper divisors (1102705337574).

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

855077190426 is a wasteful number, since it uses less digits than its factorization.

855077190426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8128 (or 8125 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 855077190426 in words is "eight hundred fifty-five billion, seventy-seven million, one hundred ninety thousand, four hundred twenty-six".