2291033395457 has 4 divisors (see below), whose sum is σ = 2425800065796. Its totient is φ = 2156266725120.

The previous prime is 2291033395429. The next prime is 2291033395481. The reversal of 2291033395457 is 7545933301922.

It is a happy number.

It is a Cunningham number, because it is equal to 1513616²+1.

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 1783677775936 + 507355619521 = 1335544^2 + 712289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291033395457 - 2²⁶ = 2290966286593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2291033395399 and 2291033395408.

It is not an unprimeable number, because it can be changed into a prime (2291033395757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67383335144 + ... + 67383335177.

It is an arithmetic number, because the mean of its divisors is an integer number (606450016449).

Almost surely, 2^{2291033395457} is an apocalyptic number.

It is an amenable number.

2291033395457 is a deficient number, since it is larger than the sum of its proper divisors (134766670339).

2291033395457 is a wasteful number, since it uses less digits than its factorization.

2291033395457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134766670338.

The product of its (nonzero) digits is 6123600, while the sum is 53.

The spelling of 2291033395457 in words is "two trillion, two hundred ninety-one billion, thirty-three million, three hundred ninety-five thousand, four hundred fifty-seven".