64810004260 has 12 divisors (see below), whose sum is σ = 136101008988. Its totient is φ = 25924001696.

The previous prime is 64810004249. The next prime is 64810004261. The reversal of 64810004260 is 6240001846.

It can be written as a sum of positive squares in 2 ways, for example, as 45504569124 + 19305435136 = 213318^2 + 138944^2 .

It is not an unprimeable number, because it can be changed into a prime (64810004261) 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, 1620250087 + ... + 1620250126.

It is an arithmetic number, because the mean of its divisors is an integer number (11341750749).

Almost surely, 2^64810004260 is an apocalyptic number.

It is an amenable number.

64810004260 is an abundant number, since it is smaller than the sum of its proper divisors (71291004728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64810004260 is a wasteful number, since it uses less digits than its factorization.

64810004260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240500222 (or 3240500220 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 64810004260 in words is "sixty-four billion, eight hundred ten million, four thousand, two hundred sixty".