72746531143 has 48 divisors (see below), whose sum is σ = 90724665600. Its totient is φ = 57661943040.

The previous prime is 72746531141. The next prime is 72746531147. The reversal of 72746531143 is 34113564727.

It is not a de Polignac number, because 72746531143 - 2¹ = 72746531141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72746531143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72746531141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12677371 + ... + 12683107.

It is an arithmetic number, because the mean of its divisors is an integer number (1890097200).

Almost surely, 2^72746531143 is an apocalyptic number.

72746531143 is a deficient number, since it is larger than the sum of its proper divisors (17978134457).

72746531143 is a wasteful number, since it uses less digits than its factorization.

72746531143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152 (or 6139 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The spelling of 72746531143 in words is "seventy-two billion, seven hundred forty-six million, five hundred thirty-one thousand, one hundred forty-three".