64473312223526 has 4 divisors (see below), whose sum is σ = 96709968335292. Its totient is φ = 32236656111762.

The previous prime is 64473312223511. The next prime is 64473312223531. The reversal of 64473312223526 is 62532221337446.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16118328055880 + ... + 16118328055883.

It is an arithmetic number, because the mean of its divisors is an integer number (24177492083823).

Almost surely, 2^{64473312223526} is an apocalyptic number.

64473312223526 is a deficient number, since it is larger than the sum of its proper divisors (32236656111766).

64473312223526 is a wasteful number, since it uses less digits than its factorization.

64473312223526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32236656111765.

The product of its digits is 8709120, while the sum is 50.

The spelling of 64473312223526 in words is "sixty-four trillion, four hundred seventy-three billion, three hundred twelve million, two hundred twenty-three thousand, five hundred twenty-six".