64422844860 has 48 divisors (see below), whose sum is σ = 196782509952. Its totient is φ = 15617659200.

The previous prime is 64422844807. The next prime is 64422844867. The reversal of 64422844860 is 6844822446.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64422844867) 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, 48804526 + ... + 48805845.

It is an arithmetic number, because the mean of its divisors is an integer number (4099635624).

Almost surely, 2^64422844860 is an apocalyptic number.

64422844860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64422844860 is an abundant number, since it is smaller than the sum of its proper divisors (132359665092).

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

64422844860 is a wasteful number, since it uses less digits than its factorization.

64422844860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97610394 (or 97610392 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 48.

The spelling of 64422844860 in words is "sixty-four billion, four hundred twenty-two million, eight hundred forty-four thousand, eight hundred sixty".