64272851 has 2 divisors, whose sum is σ = 64272852. Its totient is φ = 64272850.

The previous prime is 64272809. The next prime is 64272853. The reversal of 64272851 is 15827246.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64272851 is a prime.

It is a super-3 number, since 3×64272851³ (a number of 24 digits) contains 333 as substring.

Together with 64272853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64272853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32136425 + 32136426.

It is an arithmetic number, because the mean of its divisors is an integer number (32136426).

Almost surely, 2^64272851 is an apocalyptic number.

64272851 is a deficient number, since it is larger than the sum of its proper divisors (1).

64272851 is an equidigital number, since it uses as much as digits as its factorization.

64272851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 64272851 is about 8017.0350504410. The cubic root of 64272851 is about 400.5676336823.

The spelling of 64272851 in words is "sixty-four million, two hundred seventy-two thousand, eight hundred fifty-one".