73281484451 has 12 divisors (see below), whose sum is σ = 85251829752. Its totient is φ = 62808264288.

The previous prime is 73281484447. The next prime is 73281484453. The reversal of 73281484451 is 15448418237.

It is not a de Polignac number, because 73281484451 - 2² = 73281484447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73281484396 and 73281484405.

It is not an unprimeable number, because it can be changed into a prime (73281484453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780911 + ... + 869703.

It is an arithmetic number, because the mean of its divisors is an integer number (7104319146).

Almost surely, 2^73281484451 is an apocalyptic number.

73281484451 is a deficient number, since it is larger than the sum of its proper divisors (11970345301).

73281484451 is a wasteful number, since it uses less digits than its factorization.

73281484451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105650 (or 105643 counting only the distinct ones).

The product of its digits is 860160, while the sum is 47.

The spelling of 73281484451 in words is "seventy-three billion, two hundred eighty-one million, four hundred eighty-four thousand, four hundred fifty-one".