64035221967 has 6 divisors (see below), whose sum is σ = 92495320632. Its totient is φ = 42690147972.

The previous prime is 64035221963. The next prime is 64035221969. The reversal of 64035221967 is 76912253046.

64035221967 is a `hidden beast` number, since 6 + 403 + 52 + 2 + 196 + 7 = 666.

It is not a de Polignac number, because 64035221967 - 2² = 64035221963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64035221963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3557512323 + ... + 3557512340.

It is an arithmetic number, because the mean of its divisors is an integer number (15415886772).

Almost surely, 2^64035221967 is an apocalyptic number.

64035221967 is a deficient number, since it is larger than the sum of its proper divisors (28460098665).

64035221967 is a wasteful number, since it uses less digits than its factorization.

64035221967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115024669 (or 7115024666 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 64035221967 in words is "sixty-four billion, thirty-five million, two hundred twenty-one thousand, nine hundred sixty-seven".