64572476782 has 16 divisors (see below), whose sum is σ = 109072571904. Its totient is φ = 28404315000.

The previous prime is 64572476729. The next prime is 64572476833. The reversal of 64572476782 is 28767427546.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47339844 + ... + 47341207.

It is an arithmetic number, because the mean of its divisors is an integer number (6817035744).

Almost surely, 2^64572476782 is an apocalyptic number.

64572476782 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

64572476782 is a deficient number, since it is larger than the sum of its proper divisors (44500095122).

64572476782 is a wasteful number, since it uses less digits than its factorization.

64572476782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94681095.

The product of its digits is 31610880, while the sum is 58.

It can be divided in two parts, 645 and 72476782, that added together give a palindrome (72477427).

The spelling of 64572476782 in words is "sixty-four billion, five hundred seventy-two million, four hundred seventy-six thousand, seven hundred eighty-two".