11457036641 has 4 divisors (see below), whose sum is σ = 11852106900. Its totient is φ = 11061966384.

The previous prime is 11457036601. The next prime is 11457036683. The reversal of 11457036641 is 14663075411.

It is a happy number.

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 9178406416 + 2278630225 = 95804^2 + 47735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11457036641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11457036595 and 11457036604.

It is not an unprimeable number, because it can be changed into a prime (11457036601) 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, 197535086 + ... + 197535143.

It is an arithmetic number, because the mean of its divisors is an integer number (2963026725).

Almost surely, 2^11457036641 is an apocalyptic number.

It is an amenable number.

11457036641 is a deficient number, since it is larger than the sum of its proper divisors (395070259).

11457036641 is an equidigital number, since it uses as much as digits as its factorization.

11457036641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395070258.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 11457036641 in words is "eleven billion, four hundred fifty-seven million, thirty-six thousand, six hundred forty-one".