65437273456 has 40 divisors (see below), whose sum is σ = 133486076880. Its totient is φ = 30989988864.

The previous prime is 65437273453. The next prime is 65437273507.

65437273456 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65437273453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589970 + ... + 1630606.

It is an arithmetic number, because the mean of its divisors is an integer number (3337151922).

Almost surely, 2^65437273456 is an apocalyptic number.

It is an amenable number.

65437273456 is an abundant number, since it is smaller than the sum of its proper divisors (68048803424).

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

65437273456 is a wasteful number, since it uses less digits than its factorization.

65437273456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45961 (or 45955 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 52.

The spelling of 65437273456 in words is "sixty-five billion, four hundred thirty-seven million, two hundred seventy-three thousand, four hundred fifty-six".