64045272705 has 32 divisors (see below), whose sum is σ = 103325932800. Its totient is φ = 33873719040.

The previous prime is 64045272689. The next prime is 64045272763. The reversal of 64045272705 is 50727254046.

64045272705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64045272705 - 2⁴ = 64045272689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1387579 + ... + 1432991.

It is an arithmetic number, because the mean of its divisors is an integer number (3228935400).

Almost surely, 2^64045272705 is an apocalyptic number.

It is an amenable number.

64045272705 is a deficient number, since it is larger than the sum of its proper divisors (39280660095).

64045272705 is a wasteful number, since it uses less digits than its factorization.

64045272705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46201.

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 64045272705 in words is "sixty-four billion, forty-five million, two hundred seventy-two thousand, seven hundred five".