65832940487 has 16 divisors (see below), whose sum is σ = 70142969952. Its totient is φ = 61572725760.

The previous prime is 65832940483. The next prime is 65832940489. The reversal of 65832940487 is 78404923856.

It is a cyclic number.

It is not a de Polignac number, because 65832940487 - 2² = 65832940483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65832940483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1763348 + ... + 1800294.

It is an arithmetic number, because the mean of its divisors is an integer number (4383935622).

Almost surely, 2^65832940487 is an apocalyptic number.

65832940487 is a deficient number, since it is larger than the sum of its proper divisors (4310029465).

65832940487 is a wasteful number, since it uses less digits than its factorization.

65832940487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37618.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 65832940487 in words is "sixty-five billion, eight hundred thirty-two million, nine hundred forty thousand, four hundred eighty-seven".