72543073403 has 8 divisors (see below), whose sum is σ = 73814238960. Its totient is φ = 71273295360.

The previous prime is 72543073357. The next prime is 72543073423. The reversal of 72543073403 is 30437034527.

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 72543073403 - 2¹⁴ = 72543057019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72543073423) 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, 241118 + ... + 450803.

It is an arithmetic number, because the mean of its divisors is an integer number (9226779870).

Almost surely, 2^72543073403 is an apocalyptic number.

72543073403 is a deficient number, since it is larger than the sum of its proper divisors (1271165557).

72543073403 is a wasteful number, since it uses less digits than its factorization.

72543073403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693757.

The product of its (nonzero) digits is 211680, while the sum is 38.

The spelling of 72543073403 in words is "seventy-two billion, five hundred forty-three million, seventy-three thousand, four hundred three".