65000000000031 has 8 divisors (see below), whose sum is σ = 87115716753840. Its totient is φ = 43108808289792.

The previous prime is 65000000000027. The next prime is 65000000000051. The reversal of 65000000000031 is 13000000000056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65000000000031 - 2² = 65000000000027 is a prime.

It is a super-2 number, since 2×65000000000031² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65000000000031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000000000021) 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, 56131260216 + ... + 56131261373.

It is an arithmetic number, because the mean of its divisors is an integer number (10889464594230).

Almost surely, 2^{65000000000031} is an apocalyptic number.

65000000000031 is a deficient number, since it is larger than the sum of its proper divisors (22115716753809).

65000000000031 is a wasteful number, since it uses less digits than its factorization.

65000000000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112262521785.

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 65000000000031 its reverse (13000000000056), we get a palindrome (78000000000087).

The spelling of 65000000000031 in words is "sixty-five trillion, thirty-one", and thus it is an aban number and an uban number.