2581158726468 has 72 divisors (see below), whose sum is σ = 7456870442112. Its totient is φ = 737455162752.

The previous prime is 2581158726397. The next prime is 2581158726481. The reversal of 2581158726468 is 8646278511852.

2581158726468 is a `hidden beast` number, since 2 + 5 + 8 + 1 + 1 + 587 + 2 + 6 + 46 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12052096 + ... + 12264392.

Almost surely, 2^{2581158726468} is an apocalyptic number.

2581158726468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2581158726468 is an abundant number, since it is smaller than the sum of its proper divisors (4875711715644).

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

2581158726468 is a wasteful number, since it uses less digits than its factorization.

2581158726468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260561 (or 260556 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 63.

The spelling of 2581158726468 in words is "two trillion, five hundred eighty-one billion, one hundred fifty-eight million, seven hundred twenty-six thousand, four hundred sixty-eight".