65797381031 has 8 divisors (see below), whose sum is σ = 68662841184. Its totient is φ = 62932312960.

The previous prime is 65797380977. The next prime is 65797381033. The reversal of 65797381031 is 13018379756.

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

It is not a de Polignac number, because 65797381031 - 2¹⁰ = 65797380007 is a prime.

It is a super-2 number, since 2×65797381031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65797381033) 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, 275195 + ... + 455331.

It is an arithmetic number, because the mean of its divisors is an integer number (8582855148).

Almost surely, 2^65797381031 is an apocalyptic number.

65797381031 is a deficient number, since it is larger than the sum of its proper divisors (2865460153).

65797381031 is a wasteful number, since it uses less digits than its factorization.

65797381031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196041.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 65797381031 in words is "sixty-five billion, seven hundred ninety-seven million, three hundred eighty-one thousand, thirty-one".