2581879128354 has 64 divisors (see below), whose sum is σ = 5773356288000. Its totient is φ = 855251977104.

The previous prime is 2581879128307. The next prime is 2581879128373. The reversal of 2581879128354 is 4538219781852.

2581879128354 is a `hidden beast` number, since 2 + 5 + 81 + 87 + 9 + 128 + 354 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2581879128291 and 2581879128300.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36929859 + ... + 36999705.

It is an arithmetic number, because the mean of its divisors is an integer number (90208692000).

Almost surely, 2^{2581879128354} is an apocalyptic number.

2581879128354 is an abundant number, since it is smaller than the sum of its proper divisors (3191477159646).

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

2581879128354 is a wasteful number, since it uses less digits than its factorization.

2581879128354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74124 (or 74118 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 63.

The spelling of 2581879128354 in words is "two trillion, five hundred eighty-one billion, eight hundred seventy-nine million, one hundred twenty-eight thousand, three hundred fifty-four".