2681024391 has 12 divisors (see below), whose sum is σ = 3876666768. Its totient is φ = 1785468384.

The previous prime is 2681024383. The next prime is 2681024443. The reversal of 2681024391 is 1934201862.

2681024391 is a `hidden beast` number, since 268 + 1 + 0 + 2 + 4 + 391 = 666.

It is not a de Polignac number, because 2681024391 - 2³ = 2681024383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681024351) 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, 147715 + ... + 164868.

It is an arithmetic number, because the mean of its divisors is an integer number (323055564).

Almost surely, 2^2681024391 is an apocalyptic number.

2681024391 is a deficient number, since it is larger than the sum of its proper divisors (1195642377).

2681024391 is a wasteful number, since it uses less digits than its factorization.

2681024391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313542 (or 313539 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2681024391 is about 51778.6093961590. The cubic root of 2681024391 is about 1389.2068678855.

The spelling of 2681024391 in words is "two billion, six hundred eighty-one million, twenty-four thousand, three hundred ninety-one".