64246309428 has 72 divisors (see below), whose sum is σ = 174428436000. Its totient is φ = 18351289152.

The previous prime is 64246309409. The next prime is 64246309481. The reversal of 64246309428 is 82490364246.

64246309428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2662803 + ... + 2686821.

Almost surely, 2^64246309428 is an apocalyptic number.

It is an amenable number.

64246309428 is an abundant number, since it is smaller than the sum of its proper divisors (110182126572).

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

64246309428 is a wasteful number, since it uses less digits than its factorization.

64246309428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28589 (or 28580 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 64246309428 in words is "sixty-four billion, two hundred forty-six million, three hundred nine thousand, four hundred twenty-eight".