64511922 has 8 divisors (see below), whose sum is σ = 129023856. Its totient is φ = 21503972.

The previous prime is 64511891. The next prime is 64511927. The reversal of 64511922 is 22911546.

It is a sphenic number, since it is the product of 3 distinct primes.

64511922 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 64511922.

It is not an unprimeable number, because it can be changed into a prime (64511927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5375988 + ... + 5375999.

It is an arithmetic number, because the mean of its divisors is an integer number (16127982).

Almost surely, 2^64511922 is an apocalyptic number.

64511922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64511922 is a wasteful number, since it uses less digits than its factorization.

64511922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751992.

The product of its digits is 4320, while the sum is 30.

The square root of 64511922 is about 8031.9313991094. The cubic root of 64511922 is about 401.0636731580.

The spelling of 64511922 in words is "sixty-four million, five hundred eleven thousand, nine hundred twenty-two".