64906004828 has 36 divisors (see below), whose sum is σ = 137897203920. Its totient is φ = 26180570112.

The previous prime is 64906004827. The next prime is 64906004837. The reversal of 64906004828 is 82840060946.

64906004828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) 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 (64906004827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4002413 + ... + 4018596.

Almost surely, 2^64906004828 is an apocalyptic number.

64906004828 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

64906004828 is an abundant number, since it is smaller than the sum of its proper divisors (72991199092).

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

64906004828 is a wasteful number, since it uses less digits than its factorization.

64906004828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8021054 (or 8021035 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 64906004828 in words is "sixty-four billion, nine hundred six million, four thousand, eight hundred twenty-eight".