64899477499846 has 16 divisors (see below), whose sum is σ = 106205782607568. Its totient is φ = 29497918720000.

The previous prime is 64899477499841. The next prime is 64899477499849.

64899477499846 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64899477499841) 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, 91828975 + ... + 92533018.

It is an arithmetic number, because the mean of its divisors is an integer number (6637861412973).

Almost surely, 2^{64899477499846} is an apocalyptic number.

64899477499846 is a deficient number, since it is larger than the sum of its proper divisors (41306305107722).

64899477499846 is a wasteful number, since it uses less digits than its factorization.

64899477499846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184378007.

The product of its digits is 189621927936, while the sum is 94.

The spelling of 64899477499846 in words is "sixty-four trillion, eight hundred ninety-nine billion, four hundred seventy-seven million, four hundred ninety-nine thousand, eight hundred forty-six".