72134449202759 has 4 divisors (see below), whose sum is σ = 72183890224920. Its totient is φ = 72085008180600.

The previous prime is 72134449202719. The next prime is 72134449202831. The reversal of 72134449202759 is 95720294443127.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72134449202759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72134449202698 and 72134449202707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72134449202719) 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, 24720508892 + ... + 24720511809.

It is an arithmetic number, because the mean of its divisors is an integer number (18045972556230).

Almost surely, 2^{72134449202759} is an apocalyptic number.

72134449202759 is a deficient number, since it is larger than the sum of its proper divisors (49441022161).

72134449202759 is a wasteful number, since it uses less digits than its factorization.

72134449202759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49441022160.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 72134449202759 in words is "seventy-two trillion, one hundred thirty-four billion, four hundred forty-nine million, two hundred two thousand, seven hundred fifty-nine".