73251473865 has 8 divisors (see below), whose sum is σ = 117202358208. Its totient is φ = 39067452720.

The previous prime is 73251473849. The next prime is 73251473891. The reversal of 73251473865 is 56837415237.

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

It is not a de Polignac number, because 73251473865 - 2⁴ = 73251473849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441715781 + ... + 2441715810.

It is an arithmetic number, because the mean of its divisors is an integer number (14650294776).

Almost surely, 2^73251473865 is an apocalyptic number.

It is an amenable number.

73251473865 is a deficient number, since it is larger than the sum of its proper divisors (43950884343).

73251473865 is a wasteful number, since it uses less digits than its factorization.

73251473865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883431599.

The product of its digits is 4233600, while the sum is 51.

The spelling of 73251473865 in words is "seventy-three billion, two hundred fifty-one million, four hundred seventy-three thousand, eight hundred sixty-five".