64723774001 has 2 divisors, whose sum is σ = 64723774002. Its totient is φ = 64723774000.

The previous prime is 64723773979. The next prime is 64723774007. The reversal of 64723774001 is 10047732746.

64723774001 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., 59559914401 + 5163859600 = 244049^2 + 71860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64723774001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64723774001.

It is not a weakly prime, because it can be changed into another prime (64723774007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32361887000 + 32361887001.

It is an arithmetic number, because the mean of its divisors is an integer number (32361887001).

Almost surely, 2^64723774001 is an apocalyptic number.

It is an amenable number.

64723774001 is a deficient number, since it is larger than the sum of its proper divisors (1).

64723774001 is an equidigital number, since it uses as much as digits as its factorization.

64723774001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 64723774001 in words is "sixty-four billion, seven hundred twenty-three million, seven hundred seventy-four thousand, one".