2581098672 has 30 divisors (see below), whose sum is σ = 6668747652. Its totient is φ = 860248896.

The previous prime is 2581098659. The next prime is 2581098679. The reversal of 2581098672 is 2768901852.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2581098679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348318 + ... + 355650.

Almost surely, 2^2581098672 is an apocalyptic number.

It is an amenable number.

2581098672 is an abundant number, since it is smaller than the sum of its proper divisors (4087648980).

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

2581098672 is an frugal number, since it uses more digits than its factorization.

2581098672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14677 (or 7338 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 2581098672 is about 50804.5142876103. The cubic root of 2581098672 is about 1371.7286279715.

Multiplying 2581098672 by its sum of digits (48), we get a square (123892736256 = 351984²).

2581098672 divided by its sum of digits (48) gives a square (53772889 = 7333²).

The spelling of 2581098672 in words is "two billion, five hundred eighty-one million, ninety-eight thousand, six hundred seventy-two".