72420006473 has 8 divisors (see below), whose sum is σ = 73906996800. Its totient is φ = 70944960240.

The previous prime is 72420006437. The next prime is 72420006493. The reversal of 72420006473 is 37460002427.

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

It is a cyclic number.

It is not a de Polignac number, because 72420006473 - 2³⁴ = 55240137289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72420006493) 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, 2973773 + ... + 2998026.

It is an arithmetic number, because the mean of its divisors is an integer number (9238374600).

Almost surely, 2^72420006473 is an apocalyptic number.

It is an amenable number.

72420006473 is a deficient number, since it is larger than the sum of its proper divisors (1486990327).

72420006473 is a wasteful number, since it uses less digits than its factorization.

72420006473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972047.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 72420006473 in words is "seventy-two billion, four hundred twenty million, six thousand, four hundred seventy-three".