64211197275 has 36 divisors (see below), whose sum is σ = 115025420640. Its totient is φ = 34241198400.

The previous prime is 64211197273. The next prime is 64211197279. The reversal of 64211197275 is 57279111246.

It is not a de Polignac number, because 64211197275 - 2¹ = 64211197273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64211197275.

It is not an unprimeable number, because it can be changed into a prime (64211197273) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2097781 + ... + 2128169.

Almost surely, 2^64211197275 is an apocalyptic number.

64211197275 is a deficient number, since it is larger than the sum of its proper divisors (50814223365).

64211197275 is a wasteful number, since it uses less digits than its factorization.

64211197275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39796 (or 39788 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The spelling of 64211197275 in words is "sixty-four billion, two hundred eleven million, one hundred ninety-seven thousand, two hundred seventy-five".