64262242064 has 10 divisors (see below), whose sum is σ = 124508094030. Its totient is φ = 32131121024.

The previous prime is 64262242063. The next prime is 64262242069. The reversal of 64262242064 is 46024226246.

It can be written as a sum of positive squares in only one way, i.e., 34822545664 + 29439696400 = 186608^2 + 171580^2 .

It is not an unprimeable number, because it can be changed into a prime (64262242063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2008195049 + ... + 2008195080.

It is an arithmetic number, because the mean of its divisors is an integer number (12450809403).

Almost surely, 2^64262242064 is an apocalyptic number.

It is an amenable number.

64262242064 is a deficient number, since it is larger than the sum of its proper divisors (60245851966).

64262242064 is a wasteful number, since it uses less digits than its factorization.

64262242064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016390137 (or 4016390131 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 64262242064 in words is "sixty-four billion, two hundred sixty-two million, two hundred forty-two thousand, sixty-four".