72943746143 has 4 divisors (see below), whose sum is σ = 74032458840. Its totient is φ = 71855033448.

The previous prime is 72943746121. The next prime is 72943746167. The reversal of 72943746143 is 34164734927.

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 72943746143 - 2⁶ = 72943746079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72943746091 and 72943746100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72943746193) 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, 544356248 + ... + 544356381.

It is an arithmetic number, because the mean of its divisors is an integer number (18508114710).

Almost surely, 2^72943746143 is an apocalyptic number.

72943746143 is a deficient number, since it is larger than the sum of its proper divisors (1088712697).

72943746143 is a wasteful number, since it uses less digits than its factorization.

72943746143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088712696.

The product of its digits is 3048192, while the sum is 50.

The spelling of 72943746143 in words is "seventy-two billion, nine hundred forty-three million, seven hundred forty-six thousand, one hundred forty-three".