72134449202761 has 8 divisors (see below), whose sum is σ = 78760376309664. Its totient is φ = 65519897080320.

The previous prime is 72134449202719. The next prime is 72134449202831. The reversal of 72134449202761 is 16720294443127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72134449202761 - 2⁷ = 72134449202633 is a prime.

It is a super-4 number, since 4×72134449202761⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72134449202699 and 72134449202708.

It is not an unprimeable number, because it can be changed into a prime (72134443202761) 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 7 ways as a sum of consecutive naturals, for example, 2843732851 + ... + 2843758216.

It is an arithmetic number, because the mean of its divisors is an integer number (9845047038708).

Almost surely, 2^{72134449202761} is an apocalyptic number.

It is an amenable number.

72134449202761 is a deficient number, since it is larger than the sum of its proper divisors (6625927106903).

72134449202761 is a wasteful number, since it uses less digits than its factorization.

72134449202761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5687492231.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 72134449202761 in words is "seventy-two trillion, one hundred thirty-four billion, four hundred forty-nine million, two hundred two thousand, seven hundred sixty-one".