11397903457 has 2 divisors, whose sum is σ = 11397903458. Its totient is φ = 11397903456.

The previous prime is 11397903409. The next prime is 11397903467. The reversal of 11397903457 is 75430979311.

11397903457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9888114721 + 1509788736 = 99439^2 + 38856^2 .

It is an emirp because it is prime and its reverse (75430979311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11397903457 - 2⁷ = 11397903329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11397903457.

It is not a weakly prime, because it can be changed into another prime (11397903467) 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 as a sum of consecutive naturals, namely, 5698951728 + 5698951729.

It is an arithmetic number, because the mean of its divisors is an integer number (5698951729).

Almost surely, 2^11397903457 is an apocalyptic number.

It is an amenable number.

11397903457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11397903457 is an equidigital number, since it uses as much as digits as its factorization.

11397903457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 11397903457 in words is "eleven billion, three hundred ninety-seven million, nine hundred three thousand, four hundred fifty-seven".