39564874801 has 2 divisors, whose sum is σ = 39564874802. Its totient is φ = 39564874800.

The previous prime is 39564874729. The next prime is 39564874823. The reversal of 39564874801 is 10847846593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25464499776 + 14100375025 = 159576^2 + 118745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39564874801 is a prime.

It is not a weakly prime, because it can be changed into another prime (39564874831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19782437400 + 19782437401.

It is an arithmetic number, because the mean of its divisors is an integer number (19782437401).

Almost surely, 2^39564874801 is an apocalyptic number.

It is an amenable number.

39564874801 is a deficient number, since it is larger than the sum of its proper divisors (1).

39564874801 is an equidigital number, since it uses as much as digits as its factorization.

39564874801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 39564874801 in words is "thirty-nine billion, five hundred sixty-four million, eight hundred seventy-four thousand, eight hundred one".