65785083861 has 32 divisors (see below), whose sum is σ = 100928923648. Its totient is φ = 37334831040.

The previous prime is 65785083809. The next prime is 65785083869. The reversal of 65785083861 is 16838058756.

It is not a de Polignac number, because 65785083861 - 2⁶ = 65785083797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65785083869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11572926 + ... + 11578608.

It is an arithmetic number, because the mean of its divisors is an integer number (3154028864).

Almost surely, 2^65785083861 is an apocalyptic number.

It is an amenable number.

65785083861 is a deficient number, since it is larger than the sum of its proper divisors (35143839787).

65785083861 is a wasteful number, since it uses less digits than its factorization.

65785083861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361.

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 65785083861 in words is "sixty-five billion, seven hundred eighty-five million, eighty-three thousand, eight hundred sixty-one".