65424837987 has 6 divisors (see below), whose sum is σ = 94502543772. Its totient is φ = 43616558652.

The previous prime is 65424837983. The next prime is 65424838007. The reversal of 65424837987 is 78973842456.

65424837987 is a `hidden beast` number, since 6 + 5 + 4 + 2 + 483 + 79 + 87 = 666.

It is not a de Polignac number, because 65424837987 - 2² = 65424837983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65424837983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3634713213 + ... + 3634713230.

It is an arithmetic number, because the mean of its divisors is an integer number (15750423962).

Almost surely, 2^65424837987 is an apocalyptic number.

65424837987 is a deficient number, since it is larger than the sum of its proper divisors (29077705785).

65424837987 is a wasteful number, since it uses less digits than its factorization.

65424837987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7269426449 (or 7269426446 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 65424837987 in words is "sixty-five billion, four hundred twenty-four million, eight hundred thirty-seven thousand, nine hundred eighty-seven".