2147818632 has 64 divisors (see below), whose sum is σ = 5549836800. Its totient is φ = 691960320.

The previous prime is 2147818553. The next prime is 2147818633. The reversal of 2147818632 is 2368187412.

It is a super-2 number, since 2×2147818632² = 9226249751932702848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2147818633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838698 + ... + 841254.

It is an arithmetic number, because the mean of its divisors is an integer number (86716200).

Almost surely, 2^2147818632 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 2147818632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2774918400).

2147818632 is an abundant number, since it is smaller than the sum of its proper divisors (3402018168).

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

2147818632 is a wasteful number, since it uses less digits than its factorization.

2147818632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726 (or 3722 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 2147818632 is about 46344.5642119979. The cubic root of 2147818632 is about 1290.2262351847.

The spelling of 2147818632 in words is "two billion, one hundred forty-seven million, eight hundred eighteen thousand, six hundred thirty-two".