2681904371458 has 24 divisors (see below), whose sum is σ = 4602139348212. Its totient is φ = 1164990130944.

The previous prime is 2681904371453. The next prime is 2681904371473. The reversal of 2681904371458 is 8541734091862.

It can be written as a sum of positive squares in 6 ways, for example, as 2165585957649 + 516318413809 = 1471593^2 + 718553^2 .

It is a super-2 number, since 2×2681904371458² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2681904371453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178452985 + ... + 178468012.

It is a 2-persistent number, because it is pandigital, and so is 2⋅2681904371458 = 5363808742916, but 3⋅2681904371458 = 8045713114374 is not.

Almost surely, 2^{2681904371458} is an apocalyptic number.

2681904371458 is a deficient number, since it is larger than the sum of its proper divisors (1920234976754).

2681904371458 is a wasteful number, since it uses less digits than its factorization.

2681904371458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356921046 (or 356921029 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 2681904371458 in words is "two trillion, six hundred eighty-one billion, nine hundred four million, three hundred seventy-one thousand, four hundred fifty-eight".