2725969381 has 4 divisors (see below), whose sum is σ = 2740241664. Its totient is φ = 2711697100.

The previous prime is 2725969373. The next prime is 2725969439. The reversal of 2725969381 is 1839695272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2725969381 - 2³ = 2725969373 is a prime.

It is a super-2 number, since 2×2725969381² = 14861818132299046322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725969331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7135855 + ... + 7136236.

It is an arithmetic number, because the mean of its divisors is an integer number (685060416).

Almost surely, 2^2725969381 is an apocalyptic number.

It is an amenable number.

2725969381 is a deficient number, since it is larger than the sum of its proper divisors (14272283).

2725969381 is a wasteful number, since it uses less digits than its factorization.

2725969381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272282.

The product of its digits is 1632960, while the sum is 52.

The square root of 2725969381 is about 52210.8167049702. The cubic root of 2725969381 is about 1396.9268271395.

The spelling of 2725969381 in words is "two billion, seven hundred twenty-five million, nine hundred sixty-nine thousand, three hundred eighty-one".