64612421053 has 8 divisors (see below), whose sum is σ = 64732752000. Its totient is φ = 64492132848.

The previous prime is 64612421047. The next prime is 64612421063. The reversal of 64612421053 is 35012421646.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64612421053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64612421063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6190243 + ... + 6200671.

It is an arithmetic number, because the mean of its divisors is an integer number (8091594000).

Almost surely, 2^64612421053 is an apocalyptic number.

It is an amenable number.

64612421053 is a deficient number, since it is larger than the sum of its proper divisors (120330947).

64612421053 is a wasteful number, since it uses less digits than its factorization.

64612421053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21371.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 64612421053 its reverse (35012421646), we get a palindrome (99624842699).

The spelling of 64612421053 in words is "sixty-four billion, six hundred twelve million, four hundred twenty-one thousand, fifty-three".