64349673052 has 48 divisors (see below), whose sum is σ = 129354720768. Its totient is φ = 27438333120.

The previous prime is 64349673049. The next prime is 64349673071. The reversal of 64349673052 is 25037694346.

It is a junction number, because it is equal to n+sod(n) for n = 64349672987 and 64349673005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4843723 + ... + 4856989.

It is an arithmetic number, because the mean of its divisors is an integer number (2694890016).

Almost surely, 2^64349673052 is an apocalyptic number.

It is an amenable number.

64349673052 is an abundant number, since it is smaller than the sum of its proper divisors (65005047716).

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

64349673052 is a wasteful number, since it uses less digits than its factorization.

64349673052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14146 (or 14144 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 64349673052 in words is "sixty-four billion, three hundred forty-nine million, six hundred seventy-three thousand, fifty-two".