2311226457557 has 4 divisors (see below), whose sum is σ = 2354834503980. Its totient is φ = 2267618411136.

The previous prime is 2311226457541. The next prime is 2311226457571. The reversal of 2311226457557 is 7557546221132.

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 1976875368196 + 334351089361 = 1406014^2 + 578231^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311226457557 - 2⁴ = 2311226457541 is a prime.

It is a super-2 number, since 2×2311226457557² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311226457577) 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, 21804023132 + ... + 21804023237.

It is an arithmetic number, because the mean of its divisors is an integer number (588708625995).

Almost surely, 2^{2311226457557} is an apocalyptic number.

It is an amenable number.

2311226457557 is a deficient number, since it is larger than the sum of its proper divisors (43608046423).

2311226457557 is an equidigital number, since it uses as much as digits as its factorization.

2311226457557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43608046422.

The product of its digits is 3528000, while the sum is 50.

The spelling of 2311226457557 in words is "two trillion, three hundred eleven billion, two hundred twenty-six million, four hundred fifty-seven thousand, five hundred fifty-seven".