73864673155 has 64 divisors (see below), whose sum is σ = 113105341440. Its totient is φ = 45041278464.

The previous prime is 73864673153. The next prime is 73864673159. The reversal of 73864673155 is 55137646837.

It is a happy number.

It is not a de Polignac number, because 73864673155 - 2¹ = 73864673153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73864673096 and 73864673105.

It is not an unprimeable number, because it can be changed into a prime (73864673153) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 6156072 + ... + 6168058.

It is an arithmetic number, because the mean of its divisors is an integer number (1767270960).

Almost surely, 2^73864673155 is an apocalyptic number.

73864673155 is a deficient number, since it is larger than the sum of its proper divisors (39240668285).

73864673155 is a wasteful number, since it uses less digits than its factorization.

73864673155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508.

The product of its digits is 12700800, while the sum is 55.

It can be divided in two parts, 738646 and 73155, that added together give a square (811801 = 901²).

The spelling of 73864673155 in words is "seventy-three billion, eight hundred sixty-four million, six hundred seventy-three thousand, one hundred fifty-five".