64675473941 has 12 divisors (see below), whose sum is σ = 71969792076. Its totient is φ = 57774605760.

The previous prime is 64675473937. The next prime is 64675473943. The reversal of 64675473941 is 14937457646.

It can be written as a sum of positive squares in 2 ways, for example, as 33067967716 + 31607506225 = 181846^2 + 177785^2 .

It is not a de Polignac number, because 64675473941 - 2² = 64675473937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64675473943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2575976 + ... + 2600961.

It is an arithmetic number, because the mean of its divisors is an integer number (5997482673).

Almost surely, 2^64675473941 is an apocalyptic number.

It is an amenable number.

64675473941 is a deficient number, since it is larger than the sum of its proper divisors (7294318135).

64675473941 is a wasteful number, since it uses less digits than its factorization.

64675473941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177012 (or 5176981 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 56.

The spelling of 64675473941 in words is "sixty-four billion, six hundred seventy-five million, four hundred seventy-three thousand, nine hundred forty-one".