64311742187 has 16 divisors (see below), whose sum is σ = 80186611200. Its totient is φ = 50109459840.

The previous prime is 64311742177. The next prime is 64311742189. The reversal of 64311742187 is 78124711346.

It is not a de Polignac number, because 64311742187 - 2¹⁸ = 64311480043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64311742189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1696739 + ... + 1734227.

It is an arithmetic number, because the mean of its divisors is an integer number (5011663200).

Almost surely, 2^64311742187 is an apocalyptic number.

64311742187 is a deficient number, since it is larger than the sum of its proper divisors (15874869013).

64311742187 is a wasteful number, since it uses less digits than its factorization.

64311742187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59786.

The product of its digits is 225792, while the sum is 44.

The spelling of 64311742187 in words is "sixty-four billion, three hundred eleven million, seven hundred forty-two thousand, one hundred eighty-seven".