64345946508 has 48 divisors (see below), whose sum is σ = 168934528000. Its totient is φ = 21177144144.

The previous prime is 64345946503. The next prime is 64345946521. The reversal of 64345946508 is 80564954346.

64345946508 is a `hidden beast` number, since 6 + 4 + 3 + 45 + 94 + 6 + 508 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (64345946503) 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, 3762328 + ... + 3779391.

Almost surely, 2^64345946508 is an apocalyptic number.

It is an amenable number.

64345946508 is an abundant number, since it is smaller than the sum of its proper divisors (104588581492).

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

64345946508 is a wasteful number, since it uses less digits than its factorization.

64345946508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541811 (or 7541803 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 64345946508 in words is "sixty-four billion, three hundred forty-five million, nine hundred forty-six thousand, five hundred eight".