42846815640 has 384 divisors, whose sum is σ = 145792301760. Its totient is φ = 10035560448.

The previous prime is 42846815617. The next prime is 42846815677. The reversal of 42846815640 is 4651864824.

It is a super-2 number, since 2×42846815640² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42846815640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53759722 + ... + 53760518.

Almost surely, 2^42846815640 is an apocalyptic number.

42846815640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42846815640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72896150880).

42846815640 is an abundant number, since it is smaller than the sum of its proper divisors (102945486120).

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

42846815640 is a wasteful number, since it uses less digits than its factorization.

42846815640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 42846815640 in words is "forty-two billion, eight hundred forty-six million, eight hundred fifteen thousand, six hundred forty".