3912555641 has 2 divisors, whose sum is σ = 3912555642. Its totient is φ = 3912555640.

The previous prime is 3912555629. The next prime is 3912555653. The reversal of 3912555641 is 1465552193.

It is a balanced prime because it is at equal distance from previous prime (3912555629) and next prime (3912555653).

It can be written as a sum of positive squares in only one way, i.e., 3621512041 + 291043600 = 60179^2 + 17060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3912555641 is a prime.

It is not a weakly prime, because it can be changed into another prime (3912555041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956277820 + 1956277821.

It is an arithmetic number, because the mean of its divisors is an integer number (1956277821).

Almost surely, 2^3912555641 is an apocalyptic number.

It is an amenable number.

3912555641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3912555641 is an equidigital number, since it uses as much as digits as its factorization.

3912555641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 41.

The square root of 3912555641 is about 62550.4247867271. The cubic root of 3912555641 is about 1575.7482818419.

The spelling of 3912555641 in words is "three billion, nine hundred twelve million, five hundred fifty-five thousand, six hundred forty-one".