2291248122729 has 16 divisors (see below), whose sum is σ = 3234735694080. Its totient is φ = 1437631453440.

The previous prime is 2291248122719. The next prime is 2291248122769. The reversal of 2291248122729 is 9272218421922.

2291248122729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2291248122729 - 2⁵ = 2291248122697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2291248122719) 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, 7431024 + ... + 7733214.

It is an arithmetic number, because the mean of its divisors is an integer number (202170980880).

Almost surely, 2^{2291248122729} is an apocalyptic number.

It is an amenable number.

2291248122729 is a deficient number, since it is larger than the sum of its proper divisors (943487571351).

2291248122729 is a wasteful number, since it uses less digits than its factorization.

2291248122729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450880.

The product of its digits is 1161216, while the sum is 51.

The spelling of 2291248122729 in words is "two trillion, two hundred ninety-one billion, two hundred forty-eight million, one hundred twenty-two thousand, seven hundred twenty-nine".