72474452056 has 8 divisors (see below), whose sum is σ = 135889597620. Its totient is φ = 36237226024.

The previous prime is 72474452051. The next prime is 72474452107. The reversal of 72474452056 is 65025447427.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 72474451997 and 72474452015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72474452051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4529653246 + ... + 4529653261.

Almost surely, 2^72474452056 is an apocalyptic number.

It is an amenable number.

72474452056 is a deficient number, since it is larger than the sum of its proper divisors (63415145564).

72474452056 is a wasteful number, since it uses less digits than its factorization.

72474452056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059306513 (or 9059306509 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 46.

The spelling of 72474452056 in words is "seventy-two billion, four hundred seventy-four million, four hundred fifty-two thousand, fifty-six".