3648444131 has 2 divisors, whose sum is σ = 3648444132. Its totient is φ = 3648444130.

The previous prime is 3648444119. The next prime is 3648444179. The reversal of 3648444131 is 1314448463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3648444131 - 2²² = 3644249827 is a prime.

It is a super-2 number, since 2×3648444131² = 26622289154056690322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3648444101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824222065 + 1824222066.

It is an arithmetic number, because the mean of its divisors is an integer number (1824222066).

Almost surely, 2^3648444131 is an apocalyptic number.

3648444131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3648444131 is an equidigital number, since it uses as much as digits as its factorization.

3648444131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 38.

The square root of 3648444131 is about 60402.3520320194. The cubic root of 3648444131 is about 1539.4629221487.

The spelling of 3648444131 in words is "three billion, six hundred forty-eight million, four hundred forty-four thousand, one hundred thirty-one".