65293967984 has 40 divisors (see below), whose sum is σ = 145537018368. Its totient is φ = 27797803200.

The previous prime is 65293967983. The next prime is 65293967987. The reversal of 65293967984 is 48976939256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65293967983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913492 + ... + 1947315.

Almost surely, 2^65293967984 is an apocalyptic number.

It is an amenable number.

65293967984 is an abundant number, since it is smaller than the sum of its proper divisors (80243050384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65293967984 is a wasteful number, since it uses less digits than its factorization.

65293967984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860973 (or 3860967 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 68.

The spelling of 65293967984 in words is "sixty-five billion, two hundred ninety-three million, nine hundred sixty-seven thousand, nine hundred eighty-four".