65023619478 has 16 divisors (see below), whose sum is σ = 136891830720. Its totient is φ = 20533774536.

The previous prime is 65023619467. The next prime is 65023619561. The reversal of 65023619478 is 87491632056.

It is a self number, because there is not a number n which added to its sum of digits gives 65023619478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285191200 + ... + 285191427.

It is an arithmetic number, because the mean of its divisors is an integer number (8555739420).

It is a 2-persistent number, because it is pandigital, and so is 2⋅65023619478 = 130047238956, but 3⋅65023619478 = 195070858434 is not.

Almost surely, 2^65023619478 is an apocalyptic number.

65023619478 is an abundant number, since it is smaller than the sum of its proper divisors (71868211242).

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

65023619478 is a wasteful number, since it uses less digits than its factorization.

65023619478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570382651.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 65023619478 in words is "sixty-five billion, twenty-three million, six hundred nineteen thousand, four hundred seventy-eight".