11437442257 has 16 divisors (see below), whose sum is σ = 12459785040. Its totient is φ = 10454980608.

The previous prime is 11437442213. The next prime is 11437442279. The reversal of 11437442257 is 75224473411.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1366115521 + 10071326736 = 36961^2 + 100356^2 .

It is a cyclic number.

It is not a de Polignac number, because 11437442257 - 2⁷ = 11437442129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11437442207) 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, 341923 + ... + 373879.

It is an arithmetic number, because the mean of its divisors is an integer number (778736565).

Almost surely, 2^11437442257 is an apocalyptic number.

11437442257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11437442257 is a deficient number, since it is larger than the sum of its proper divisors (1022342783).

11437442257 is a wasteful number, since it uses less digits than its factorization.

11437442257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32580.

The product of its digits is 188160, while the sum is 40.

The spelling of 11437442257 in words is "eleven billion, four hundred thirty-seven million, four hundred forty-two thousand, two hundred fifty-seven".