3651905801 has 2 divisors, whose sum is σ = 3651905802. Its totient is φ = 3651905800.

The previous prime is 3651905749. The next prime is 3651905837. The reversal of 3651905801 is 1085091563.

3651905801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3458028025 + 193877776 = 58805^2 + 13924^2 .

It is a cyclic number.

It is not a de Polignac number, because 3651905801 - 2¹⁸ = 3651643657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3651905861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825952900 + 1825952901.

It is an arithmetic number, because the mean of its divisors is an integer number (1825952901).

Almost surely, 2^3651905801 is an apocalyptic number.

It is an amenable number.

3651905801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3651905801 is an equidigital number, since it uses as much as digits as its factorization.

3651905801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 3651905801 is about 60431.0003309560. Note that the first 3 decimals coincide. The cubic root of 3651905801 is about 1539.9496527364.

The spelling of 3651905801 in words is "three billion, six hundred fifty-one million, nine hundred five thousand, eight hundred one".