3681339453 has 36 divisors (see below), whose sum is σ = 5851205724. Its totient is φ = 2228688000.

The previous prime is 3681339449. The next prime is 3681339461. The reversal of 3681339453 is 3549331863.

3681339453 is a `hidden beast` number, since 3 + 68 + 133 + 9 + 453 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1315295289 + 2366044164 = 36267^2 + 48642^2 .

It is not a de Polignac number, because 3681339453 - 2² = 3681339449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3681339399 and 3681339408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681339413) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1960351 + ... + 1962227.

Almost surely, 2^3681339453 is an apocalyptic number.

3681339453 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3681339453 is a deficient number, since it is larger than the sum of its proper divisors (2169866271).

3681339453 is a wasteful number, since it uses less digits than its factorization.

3681339453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706 (or 3692 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 3681339453 is about 60674.0426624104. The cubic root of 3681339453 is about 1544.0758189219.

The spelling of 3681339453 in words is "three billion, six hundred eighty-one million, three hundred thirty-nine thousand, four hundred fifty-three".