64898239418 has 16 divisors (see below), whose sum is σ = 97624608000. Its totient is φ = 32356768032.

The previous prime is 64898239411. The next prime is 64898239423. The reversal of 64898239418 is 81493289846.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64898239411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2209553 + ... + 2238731.

It is an arithmetic number, because the mean of its divisors is an integer number (6101538000).

Almost surely, 2^64898239418 is an apocalyptic number.

64898239418 is a deficient number, since it is larger than the sum of its proper divisors (32726368582).

64898239418 is a wasteful number, since it uses less digits than its factorization.

64898239418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32309.

The product of its digits is 23887872, while the sum is 62.

The spelling of 64898239418 in words is "sixty-four billion, eight hundred ninety-eight million, two hundred thirty-nine thousand, four hundred eighteen".