72513040431243 has 16 divisors (see below), whose sum is σ = 96746334439712. Its totient is φ = 48310888320000.

The previous prime is 72513040431217. The next prime is 72513040431281. The reversal of 72513040431243 is 34213404031527.

It is not a de Polignac number, because 72513040431243 - 2⁴² = 68114993920139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72513040411243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198232533 + ... + 198597993.

It is an arithmetic number, because the mean of its divisors is an integer number (6046645902482).

Almost surely, 2^{72513040431243} is an apocalyptic number.

72513040431243 is a deficient number, since it is larger than the sum of its proper divisors (24233294008469).

72513040431243 is a wasteful number, since it uses less digits than its factorization.

72513040431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407886.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 72513040431243 in words is "seventy-two trillion, five hundred thirteen billion, forty million, four hundred thirty-one thousand, two hundred forty-three".