42855036940 has 48 divisors (see below), whose sum is σ = 94880056320. Its totient is φ = 16214454720.

The previous prime is 42855036919. The next prime is 42855036953. The reversal of 42855036940 is 4963055824.

It is a super-2 number, since 2×42855036940² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156645 + ... + 332035.

It is an arithmetic number, because the mean of its divisors is an integer number (1976667840).

Almost surely, 2^42855036940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42855036940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47440028160).

42855036940 is an abundant number, since it is smaller than the sum of its proper divisors (52025019380).

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

42855036940 is a wasteful number, since it uses less digits than its factorization.

42855036940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176062 (or 176060 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 42855036940 in words is "forty-two billion, eight hundred fifty-five million, thirty-six thousand, nine hundred forty".