65371367838 has 64 divisors (see below), whose sum is σ = 150278105088. Its totient is φ = 18570528480.

The previous prime is 65371367807. The next prime is 65371367857. The reversal of 65371367838 is 83876317356.

It is a super-2 number, since 2×65371367838² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7880473 + ... + 7888763.

It is an arithmetic number, because the mean of its divisors is an integer number (2348095392).

Almost surely, 2^65371367838 is an apocalyptic number.

65371367838 is an abundant number, since it is smaller than the sum of its proper divisors (84906737250).

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

65371367838 is a wasteful number, since it uses less digits than its factorization.

65371367838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9357.

The product of its digits is 15240960, while the sum is 57.

The spelling of 65371367838 in words is "sixty-five billion, three hundred seventy-one million, three hundred sixty-seven thousand, eight hundred thirty-eight".