72143578642953 has 8 divisors (see below), whose sum is σ = 96308317219648. Its totient is φ = 48037279580784.

The previous prime is 72143578642931. The next prime is 72143578642981. The reversal of 72143578642953 is 35924687534127.

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

It is not a de Polignac number, because 72143578642953 - 2⁵ = 72143578642921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72143578692953) 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, 14609875750 + ... + 14609880687.

It is an arithmetic number, because the mean of its divisors is an integer number (12038539652456).

Almost surely, 2^{72143578642953} is an apocalyptic number.

It is an amenable number.

72143578642953 is a deficient number, since it is larger than the sum of its proper divisors (24164738576695).

72143578642953 is a wasteful number, since it uses less digits than its factorization.

72143578642953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29219757263.

The product of its digits is 304819200, while the sum is 66.

The spelling of 72143578642953 in words is "seventy-two trillion, one hundred forty-three billion, five hundred seventy-eight million, six hundred forty-two thousand, nine hundred fifty-three".