72294437143 has 4 divisors (see below), whose sum is σ = 72296578368. Its totient is φ = 72292295920.

The previous prime is 72294437141. The next prime is 72294437179. The reversal of 72294437143 is 34173449227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72294437143 - 2¹ = 72294437141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72294437093 and 72294437102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72294437141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019143 + ... + 1087768.

It is an arithmetic number, because the mean of its divisors is an integer number (18074144592).

Almost surely, 2^72294437143 is an apocalyptic number.

72294437143 is a deficient number, since it is larger than the sum of its proper divisors (2141225).

72294437143 is a wasteful number, since it uses less digits than its factorization.

72294437143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141224.

The product of its digits is 1016064, while the sum is 46.

The spelling of 72294437143 in words is "seventy-two billion, two hundred ninety-four million, four hundred thirty-seven thousand, one hundred forty-three".