72535429549 has 16 divisors (see below), whose sum is σ = 79444661184. Its totient is φ = 65678976000.

The previous prime is 72535429531. The next prime is 72535429607. The reversal of 72535429549 is 94592453527.

It is not a de Polignac number, because 72535429549 - 2¹⁷ = 72535298477 is a prime.

It is a super-2 number, since 2×72535429549² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72535429549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72535429349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6804874 + ... + 6815524.

It is an arithmetic number, because the mean of its divisors is an integer number (4965291324).

Almost surely, 2^72535429549 is an apocalyptic number.

It is an amenable number.

72535429549 is a deficient number, since it is larger than the sum of its proper divisors (6909231635).

72535429549 is a wasteful number, since it uses less digits than its factorization.

72535429549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068.

The product of its digits is 13608000, while the sum is 55.

The spelling of 72535429549 in words is "seventy-two billion, five hundred thirty-five million, four hundred twenty-nine thousand, five hundred forty-nine".