64871325842 has 8 divisors (see below), whose sum is σ = 97315740732. Its totient is φ = 32432745600.

The previous prime is 64871325829. The next prime is 64871325863. The reversal of 64871325842 is 24852317846.

It can be written as a sum of positive squares in 2 ways, for example, as 43435144921 + 21436180921 = 208411^2 + 146411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430759 + ... + 1475402.

Almost surely, 2^64871325842 is an apocalyptic number.

64871325842 is a deficient number, since it is larger than the sum of its proper divisors (32444414890).

64871325842 is a wasteful number, since it uses less digits than its factorization.

64871325842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917324.

The product of its digits is 2580480, while the sum is 50.

The spelling of 64871325842 in words is "sixty-four billion, eight hundred seventy-one million, three hundred twenty-five thousand, eight hundred forty-two".