2248991487638 has 192 divisors, whose sum is σ = 4135177267200. Its totient is φ = 913935052800.

The previous prime is 2248991487629. The next prime is 2248991487649. The reversal of 2248991487638 is 8367841998422.

It is a super-2 number, since 2×2248991487638² (a number of 26 digits) contains 22 as substring.

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, 8298861443 + ... + 8298861713.

It is an arithmetic number, because the mean of its divisors is an integer number (21537381600).

Almost surely, 2^{2248991487638} is an apocalyptic number.

2248991487638 is a deficient number, since it is larger than the sum of its proper divisors (1886185779562).

2248991487638 is a wasteful number, since it uses less digits than its factorization.

2248991487638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 724 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 71.

The spelling of 2248991487638 in words is "two trillion, two hundred forty-eight billion, nine hundred ninety-one million, four hundred eighty-seven thousand, six hundred thirty-eight".