64387142741 has 2 divisors, whose sum is σ = 64387142742. Its totient is φ = 64387142740.

The previous prime is 64387142713. The next prime is 64387142761. The reversal of 64387142741 is 14724178346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34877056516 + 29510086225 = 186754^2 + 171785^2 .

It is a cyclic number.

It is not a de Polignac number, because 64387142741 - 2³⁴ = 47207273557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64387142761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32193571370 + 32193571371.

It is an arithmetic number, because the mean of its divisors is an integer number (32193571371).

Almost surely, 2^64387142741 is an apocalyptic number.

It is an amenable number.

64387142741 is a deficient number, since it is larger than the sum of its proper divisors (1).

64387142741 is an equidigital number, since it uses as much as digits as its factorization.

64387142741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 47.

The spelling of 64387142741 in words is "sixty-four billion, three hundred eighty-seven million, one hundred forty-two thousand, seven hundred forty-one".