64423405098 has 48 divisors (see below), whose sum is σ = 155170369536. Its totient is φ = 19183145760.

The previous prime is 64423405097. The next prime is 64423405153. The reversal of 64423405098 is 89050432446.

64423405098 is a `hidden beast` number, since 64 + 42 + 3 + 40 + 509 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (64423405093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4433290 + ... + 4447797.

It is an arithmetic number, because the mean of its divisors is an integer number (3232716032).

Almost surely, 2^64423405098 is an apocalyptic number.

64423405098 is an abundant number, since it is smaller than the sum of its proper divisors (90746964438).

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

64423405098 is a wasteful number, since it uses less digits than its factorization.

64423405098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881139 (or 8881136 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 64423405098 in words is "sixty-four billion, four hundred twenty-three million, four hundred five thousand, ninety-eight".