72711466126441 has 4 divisors (see below), whose sum is σ = 72711499001812. Its totient is φ = 72711433251072.

The previous prime is 72711466126433. The next prime is 72711466126459. The reversal of 72711466126441 is 14462166411727.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66840435360000 + 5871030766441 = 8175600^2 + 2423021^2 .

It is a cyclic number.

It is not a de Polignac number, because 72711466126441 - 2³ = 72711466126433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72711466126421) 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, 12860616 + ... + 17630041.

It is an arithmetic number, because the mean of its divisors is an integer number (18177874750453).

Almost surely, 2^{72711466126441} is an apocalyptic number.

It is an amenable number.

72711466126441 is a deficient number, since it is larger than the sum of its proper divisors (32875371).

72711466126441 is a wasteful number, since it uses less digits than its factorization.

72711466126441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32875370.

The product of its digits is 2709504, while the sum is 52.

The spelling of 72711466126441 in words is "seventy-two trillion, seven hundred eleven billion, four hundred sixty-six million, one hundred twenty-six thousand, four hundred forty-one".