42861249522 has 192 divisors, whose sum is σ = 125602646400. Its totient is φ = 10708951680.

The previous prime is 42861249517. The next prime is 42861249527. The reversal of 42861249522 is 22594216824.

42861249522 is a `hidden beast` number, since 4 + 2 + 8 + 612 + 4 + 9 + 5 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (42861249517) and next prime (42861249527).

It is not an unprimeable number, because it can be changed into a prime (42861249527) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 620772 + ... + 686352.

It is an arithmetic number, because the mean of its divisors is an integer number (654180450).

Almost surely, 2^42861249522 is an apocalyptic number.

42861249522 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 42861249522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62801323200).

42861249522 is an abundant number, since it is smaller than the sum of its proper divisors (82741396878).

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

42861249522 is a wasteful number, since it uses less digits than its factorization.

42861249522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65638 (or 65625 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 42861249522 in words is "forty-two billion, eight hundred sixty-one million, two hundred forty-nine thousand, five hundred twenty-two".