5643015642 has 96 divisors (see below), whose sum is σ = 13553205120. Its totient is φ = 1682640000.

The previous prime is 5643015641. The next prime is 5643015659. The reversal of 5643015642 is 2465103465.

5643015642 is a `hidden beast` number, since 5 + 6 + 4 + 3 + 0 + 1 + 5 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5643015597 and 5643015606.

It is not an unprimeable number, because it can be changed into a prime (5643015641) 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, 3618859 + ... + 3620417.

It is an arithmetic number, because the mean of its divisors is an integer number (141179220).

Almost surely, 2^5643015642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643015642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6776602560).

5643015642 is an abundant number, since it is smaller than the sum of its proper divisors (7910189478).

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

5643015642 is a wasteful number, since it uses less digits than its factorization.

5643015642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 5643015642 is about 75120.0082667727. The cubic root of 5643015642 is about 1780.3432871125.

The spelling of 5643015642 in words is "five billion, six hundred forty-three million, fifteen thousand, six hundred forty-two".