3725649461 has 2 divisors, whose sum is σ = 3725649462. Its totient is φ = 3725649460.

The previous prime is 3725649449. The next prime is 3725649493. The reversal of 3725649461 is 1649465273.

3725649461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3488674225 + 236975236 = 59065^2 + 15394^2 .

It is a cyclic number.

It is not a de Polignac number, because 3725649461 - 2⁶ = 3725649397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3725649061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1862824730 + 1862824731.

It is an arithmetic number, because the mean of its divisors is an integer number (1862824731).

Almost surely, 2^3725649461 is an apocalyptic number.

It is an amenable number.

3725649461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3725649461 is an equidigital number, since it uses as much as digits as its factorization.

3725649461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 3725649461 is about 61038.0984385982. The cubic root of 3725649461 is about 1550.2461573674.

The spelling of 3725649461 in words is "three billion, seven hundred twenty-five million, six hundred forty-nine thousand, four hundred sixty-one".