741212517721 has 16 divisors (see below), whose sum is σ = 801392707584. Its totient is φ = 681489635904.

The previous prime is 741212517697. The next prime is 741212517737. The reversal of 741212517721 is 127715212147.

It is a cyclic number.

It is not a de Polignac number, because 741212517721 - 2²⁵ = 741178963289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (741212515721) 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, 3242040 + ... + 3463126.

It is an arithmetic number, because the mean of its divisors is an integer number (50087044224).

Almost surely, 2^741212517721 is an apocalyptic number.

It is an amenable number.

741212517721 is a deficient number, since it is larger than the sum of its proper divisors (60180189863).

741212517721 is a wasteful number, since it uses less digits than its factorization.

741212517721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222120.

The product of its digits is 54880, while the sum is 40.

Adding to 741212517721 its reverse (127715212147), we get a palindrome (868927729868).

The spelling of 741212517721 in words is "seven hundred forty-one billion, two hundred twelve million, five hundred seventeen thousand, seven hundred twenty-one".