2263518638472 has 256 divisors, whose sum is σ = 7113689856000. Its totient is φ = 596394005760.

The previous prime is 2263518638443. The next prime is 2263518638489. The reversal of 2263518638472 is 2748368153622.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 116744763 + ... + 116764149.

It is an arithmetic number, because the mean of its divisors is an integer number (27787851000).

Almost surely, 2^{2263518638472} 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 2263518638472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3556844928000).

2263518638472 is an abundant number, since it is smaller than the sum of its proper divisors (4850171217528).

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

2263518638472 is a wasteful number, since it uses less digits than its factorization.

2263518638472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20521 (or 20503 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 57.

The spelling of 2263518638472 in words is "two trillion, two hundred sixty-three billion, five hundred eighteen million, six hundred thirty-eight thousand, four hundred seventy-two".