65263578536 has 32 divisors (see below), whose sum is σ = 132788224800. Its totient is φ = 29891709120.

The previous prime is 65263578437. The next prime is 65263578547. The reversal of 65263578536 is 63587536256.

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, 2381546 + ... + 2408793.

It is an arithmetic number, because the mean of its divisors is an integer number (4149632025).

Almost surely, 2^65263578536 is an apocalyptic number.

It is an amenable number.

65263578536 is an abundant number, since it is smaller than the sum of its proper divisors (67524646264).

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

65263578536 is a wasteful number, since it uses less digits than its factorization.

65263578536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790489 (or 4790485 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 56.

The spelling of 65263578536 in words is "sixty-five billion, two hundred sixty-three million, five hundred seventy-eight thousand, five hundred thirty-six".