64422146694 has 32 divisors (see below), whose sum is σ = 131960784384. Its totient is φ = 20955543840.

The previous prime is 64422146693. The next prime is 64422146713. The reversal of 64422146694 is 49664122446.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64422146693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171384 + ... + 397764.

It is an arithmetic number, because the mean of its divisors is an integer number (4123774512).

Almost surely, 2^64422146694 is an apocalyptic number.

64422146694 is an abundant number, since it is smaller than the sum of its proper divisors (67538637690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64422146694 is a wasteful number, since it uses less digits than its factorization.

64422146694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227532.

The product of its digits is 1990656, while the sum is 48.

The spelling of 64422146694 in words is "sixty-four billion, four hundred twenty-two million, one hundred forty-six thousand, six hundred ninety-four".