3949662562597 has 2 divisors, whose sum is σ = 3949662562598. Its totient is φ = 3949662562596.

The previous prime is 3949662562523. The next prime is 3949662562607. The reversal of 3949662562597 is 7952652669493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2657532477636 + 1292130084961 = 1630194^2 + 1136719^2 .

It is a cyclic number.

It is not a de Polignac number, because 3949662562597 - 2¹⁵ = 3949662529829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3949662562397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974831281298 + 1974831281299.

It is an arithmetic number, because the mean of its divisors is an integer number (1974831281299).

Almost surely, 2^{3949662562597} is an apocalyptic number.

It is an amenable number.

3949662562597 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949662562597 is an equidigital number, since it uses as much as digits as its factorization.

3949662562597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1322697600, while the sum is 73.

The spelling of 3949662562597 in words is "three trillion, nine hundred forty-nine billion, six hundred sixty-two million, five hundred sixty-two thousand, five hundred ninety-seven".