864367946642 has 16 divisors (see below), whose sum is σ = 1298694691800. Its totient is φ = 431469877632.

The previous prime is 864367946641. The next prime is 864367946653. The reversal of 864367946642 is 246649763468.

It can be written as a sum of positive squares in 4 ways, for example, as 557353326721 + 307014619921 = 746561^2 + 554089^2 .

It is not an unprimeable number, because it can be changed into a prime (864367946641) 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, 12174398 + ... + 12245190.

Almost surely, 2^864367946642 is an apocalyptic number.

864367946642 is a deficient number, since it is larger than the sum of its proper divisors (434326745158).

864367946642 is a wasteful number, since it uses less digits than its factorization.

864367946642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80797.

The product of its digits is 250822656, while the sum is 65.

The spelling of 864367946642 in words is "eight hundred sixty-four billion, three hundred sixty-seven million, nine hundred forty-six thousand, six hundred forty-two".