64476369851 has 2 divisors, whose sum is σ = 64476369852. Its totient is φ = 64476369850.

The previous prime is 64476369827. The next prime is 64476369883. The reversal of 64476369851 is 15896367446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64476369851 - 2²⁶ = 64409260987 is a prime.

It is not a weakly prime, because it can be changed into another prime (64476309851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32238184925 + 32238184926.

It is an arithmetic number, because the mean of its divisors is an integer number (32238184926).

Almost surely, 2^64476369851 is an apocalyptic number.

64476369851 is a deficient number, since it is larger than the sum of its proper divisors (1).

64476369851 is an equidigital number, since it uses as much as digits as its factorization.

64476369851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 59.

The spelling of 64476369851 in words is "sixty-four billion, four hundred seventy-six million, three hundred sixty-nine thousand, eight hundred fifty-one".