65278344048 has 20 divisors (see below), whose sum is σ = 168635722248. Its totient is φ = 21759448000.

The previous prime is 65278343983. The next prime is 65278344077. The reversal of 65278344048 is 84044387256.

It is a super-2 number, since 2×65278344048² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679982703 + ... + 679982798.

Almost surely, 2^65278344048 is an apocalyptic number.

It is an amenable number.

65278344048 is an abundant number, since it is smaller than the sum of its proper divisors (103357378200).

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

65278344048 is a wasteful number, since it uses less digits than its factorization.

65278344048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359965512 (or 1359965506 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 65278344048 in words is "sixty-five billion, two hundred seventy-eight million, three hundred forty-four thousand, forty-eight".