64786377368746 has 16 divisors (see below), whose sum is σ = 106436438887968. Its totient is φ = 29331029230000.

The previous prime is 64786377368623. The next prime is 64786377368879.

64786377368746 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64786377368746² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64786377368746.

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, 5866200325 + ... + 5866211368.

It is an arithmetic number, because the mean of its divisors is an integer number (6652277430498).

Almost surely, 2^{64786377368746} is an apocalyptic number.

64786377368746 is a deficient number, since it is larger than the sum of its proper divisors (41650061519222).

64786377368746 is a wasteful number, since it uses less digits than its factorization.

64786377368746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732411957.

The product of its digits is 28677390336, while the sum is 82.

The spelling of 64786377368746 in words is "sixty-four trillion, seven hundred eighty-six billion, three hundred seventy-seven million, three hundred sixty-eight thousand, seven hundred forty-six".