72051785153 has 8 divisors (see below), whose sum is σ = 75187381248. Its totient is φ = 68916431584.

The previous prime is 72051785149. The next prime is 72051785159. The reversal of 72051785153 is 35158715027.

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 72051785153 - 2² = 72051785149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72051785159) 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, 816800 + ... + 900702.

It is an arithmetic number, because the mean of its divisors is an integer number (9398422656).

Almost surely, 2^72051785153 is an apocalyptic number.

It is an amenable number.

72051785153 is a deficient number, since it is larger than the sum of its proper divisors (3135596095).

72051785153 is a wasteful number, since it uses less digits than its factorization.

72051785153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121263.

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 72051785153 in words is "seventy-two billion, fifty-one million, seven hundred eighty-five thousand, one hundred fifty-three".