65428706137 has 4 divisors (see below), whose sum is σ = 65432464336. Its totient is φ = 65424947940.

The previous prime is 65428706129. The next prime is 65428706219. The reversal of 65428706137 is 73160782456.

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 65428706137 - 2³ = 65428706129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65428706437) 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, 1852863 + ... + 1887844.

It is an arithmetic number, because the mean of its divisors is an integer number (16358116084).

Almost surely, 2^65428706137 is an apocalyptic number.

It is an amenable number.

65428706137 is a deficient number, since it is larger than the sum of its proper divisors (3758199).

65428706137 is a wasteful number, since it uses less digits than its factorization.

65428706137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758198.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 65428706137 in words is "sixty-five billion, four hundred twenty-eight million, seven hundred six thousand, one hundred thirty-seven".