64883254465438 has 16 divisors (see below), whose sum is σ = 98667690236640. Its totient is φ = 31994110791936.

The previous prime is 64883254465433. The next prime is 64883254465439. The reversal of 64883254465438 is 83456445238846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64883254465433) 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, 20093970 + ... + 23098357.

It is an arithmetic number, because the mean of its divisors is an integer number (6166730639790).

Almost surely, 2^{64883254465438} is an apocalyptic number.

64883254465438 is a deficient number, since it is larger than the sum of its proper divisors (33784435771202).

64883254465438 is a wasteful number, since it uses less digits than its factorization.

64883254465438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43202691.

The product of its digits is 2123366400, while the sum is 70.

The spelling of 64883254465438 in words is "sixty-four trillion, eight hundred eighty-three billion, two hundred fifty-four million, four hundred sixty-five thousand, four hundred thirty-eight".