2501893994409 has 12 divisors (see below), whose sum is σ = 3625247032836. Its totient is φ = 1662667720992.

The previous prime is 2501893994401. The next prime is 2501893994441. The reversal of 2501893994409 is 9044993981052.

2501893994409 is a `hidden beast` number, since 2 + 5 + 0 + 18 + 93 + 99 + 440 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 547481606400 + 1954412388009 = 739920^2 + 1398003^2 .

It is not a de Polignac number, because 2501893994409 - 2³ = 2501893994401 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2501893994401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438464374 + ... + 438470079.

It is an arithmetic number, because the mean of its divisors is an integer number (302103919403).

Almost surely, 2^{2501893994409} is an apocalyptic number.

It is an amenable number.

2501893994409 is a deficient number, since it is larger than the sum of its proper divisors (1123353038427).

2501893994409 is a wasteful number, since it uses less digits than its factorization.

2501893994409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876934776 (or 876934773 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 2501893994409 in words is "two trillion, five hundred one billion, eight hundred ninety-three million, nine hundred ninety-four thousand, four hundred nine".