73478800865 has 8 divisors (see below), whose sum is σ = 88404784128. Its totient is φ = 58629558640.

The previous prime is 73478800861. The next prime is 73478800877. The reversal of 73478800865 is 56800887437.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73478800865 - 2² = 73478800861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73478800865.

It is not an unprimeable number, because it can be changed into a prime (73478800861) 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, 19183151 + ... + 19186980.

It is an arithmetic number, because the mean of its divisors is an integer number (11050598016).

Almost surely, 2^73478800865 is an apocalyptic number.

It is an amenable number.

73478800865 is a deficient number, since it is larger than the sum of its proper divisors (14925983263).

73478800865 is a wasteful number, since it uses less digits than its factorization.

73478800865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38370519.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 73478800865 in words is "seventy-three billion, four hundred seventy-eight million, eight hundred thousand, eight hundred sixty-five".