65493429457 has 4 divisors (see below), whose sum is σ = 68940452080. Its totient is φ = 62046406836.

The previous prime is 65493429431. The next prime is 65493429467. The reversal of 65493429457 is 75492439456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65493429457 - 2³¹ = 63345945809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65493429427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1723511283 + ... + 1723511320.

It is an arithmetic number, because the mean of its divisors is an integer number (17235113020).

Almost surely, 2^65493429457 is an apocalyptic number.

It is an amenable number.

65493429457 is a deficient number, since it is larger than the sum of its proper divisors (3447022623).

65493429457 is a wasteful number, since it uses less digits than its factorization.

65493429457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447022622.

The product of its digits is 32659200, while the sum is 58.

Subtracting 65493429457 from its reverse (75492439456), we obtain a palindrome (9999009999).

The spelling of 65493429457 in words is "sixty-five billion, four hundred ninety-three million, four hundred twenty-nine thousand, four hundred fifty-seven".