64260961337 has 4 divisors (see below), whose sum is σ = 64287998196. Its totient is φ = 64233924480.

The previous prime is 64260961327. The next prime is 64260961379. The reversal of 64260961337 is 73316906246.

64260961337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73316906246 = 2 ⋅36658453123.

It can be written as a sum of positive squares in 2 ways, for example, as 21932425216 + 42328536121 = 148096^2 + 205739^2 .

It is a cyclic number.

It is not a de Polignac number, because 64260961337 - 2⁶ = 64260961273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64260961291 and 64260961300.

It is not an unprimeable number, because it can be changed into a prime (64260961327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13514864 + ... + 13519617.

It is an arithmetic number, because the mean of its divisors is an integer number (16071999549).

Almost surely, 2^64260961337 is an apocalyptic number.

It is an amenable number.

64260961337 is a deficient number, since it is larger than the sum of its proper divisors (27036859).

64260961337 is a wasteful number, since it uses less digits than its factorization.

64260961337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27036858.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 64260961337 in words is "sixty-four billion, two hundred sixty million, nine hundred sixty-one thousand, three hundred thirty-seven".