64364293643 has 8 divisors (see below), whose sum is σ = 70029986208. Its totient is φ = 58800685824.

The previous prime is 64364293607. The next prime is 64364293727. The reversal of 64364293643 is 34639246346.

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

It is a cyclic number.

It is not a de Polignac number, because 64364293643 - 2¹⁴ = 64364277259 is a prime.

It is a super-2 number, since 2×64364293643² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64364293591 and 64364293600.

It is not an unprimeable number, because it can be changed into a prime (64364293603) 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, 25519871 + ... + 25522392.

It is an arithmetic number, because the mean of its divisors is an integer number (8753748276).

Almost surely, 2^64364293643 is an apocalyptic number.

64364293643 is a deficient number, since it is larger than the sum of its proper divisors (5665692565).

64364293643 is a wasteful number, since it uses less digits than its factorization.

64364293643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51042373.

The product of its digits is 6718464, while the sum is 50.

The spelling of 64364293643 in words is "sixty-four billion, three hundred sixty-four million, two hundred ninety-three thousand, six hundred forty-three".