3518997388864 has 28 divisors (see below), whose sum is σ = 6989783620608. Its totient is φ = 1757792067200.

The previous prime is 3518997388861. The next prime is 3518997388867. The reversal of 3518997388864 is 4688837998153.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3518997388861) and next prime (3518997388867).

It is not an unprimeable number, because it can be changed into a prime (3518997388861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26599552 + ... + 26731519.

Almost surely, 2^{3518997388864} is an apocalyptic number.

It is an amenable number.

3518997388864 is a deficient number, since it is larger than the sum of its proper divisors (3470786231744).

3518997388864 is a wasteful number, since it uses less digits than its factorization.

3518997388864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53332114 (or 53332104 counting only the distinct ones).

The product of its digits is 2508226560, while the sum is 79.

The spelling of 3518997388864 in words is "three trillion, five hundred eighteen billion, nine hundred ninety-seven million, three hundred eighty-eight thousand, eight hundred sixty-four".