72500223478 has 8 divisors (see below), whose sum is σ = 108764036640. Its totient is φ = 36245544600.

The previous prime is 72500223457. The next prime is 72500223533. The reversal of 72500223478 is 87432200527.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72500223478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263693 + ... + 2295496.

It is an arithmetic number, because the mean of its divisors is an integer number (13595504580).

Almost surely, 2^72500223478 is an apocalyptic number.

72500223478 is a deficient number, since it is larger than the sum of its proper divisors (36263813162).

72500223478 is a wasteful number, since it uses less digits than its factorization.

72500223478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567142.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 72500223478 in words is "seventy-two billion, five hundred million, two hundred twenty-three thousand, four hundred seventy-eight".