64235672209 has 8 divisors (see below), whose sum is σ = 64865691072. Its totient is φ = 63605776080.

The previous prime is 64235672197. The next prime is 64235672231. The reversal of 64235672209 is 90227653246.

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 64235672209 - 2¹⁷ = 64235541137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64235678209) 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, 1303794 + ... + 1352164.

It is an arithmetic number, because the mean of its divisors is an integer number (8108211384).

Almost surely, 2^64235672209 is an apocalyptic number.

It is an amenable number.

64235672209 is a deficient number, since it is larger than the sum of its proper divisors (630018863).

64235672209 is a wasteful number, since it uses less digits than its factorization.

64235672209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61367.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 64235672209 in words is "sixty-four billion, two hundred thirty-five million, six hundred seventy-two thousand, two hundred nine".