2581293372 has 48 divisors (see below), whose sum is σ = 6886064640. Its totient is φ = 737232192.

The previous prime is 2581293371. The next prime is 2581293373. The reversal of 2581293372 is 2733921852.

It is an interprime number because it is at equal distance from previous prime (2581293371) and next prime (2581293373).

It is a super-2 number, since 2×2581293372² = 13326150944662260768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581293371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332754 + ... + 340422.

It is an arithmetic number, because the mean of its divisors is an integer number (143459680).

Almost surely, 2^2581293372 is an apocalyptic number.

It is an amenable number.

2581293372 is an abundant number, since it is smaller than the sum of its proper divisors (4304771268).

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

2581293372 is a wasteful number, since it uses less digits than its factorization.

2581293372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11690 (or 11688 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 2581293372 is about 50806.4304197805. The cubic root of 2581293372 is about 1371.7631183033.

The spelling of 2581293372 in words is "two billion, five hundred eighty-one million, two hundred ninety-three thousand, three hundred seventy-two".