11880319942657 has 2 divisors, whose sum is σ = 11880319942658. Its totient is φ = 11880319942656.

The previous prime is 11880319942649. The next prime is 11880319942669. The reversal of 11880319942657 is 75624991308811.

It is a Cunningham number, because it is equal to 3446784²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11880319942656 + 1 = 3446784^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 11880319942657 - 2³ = 11880319942649 is a prime.

It is a super-2 number, since 2×11880319942657² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11880319922657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5940159971328 + 5940159971329.

It is an arithmetic number, because the mean of its divisors is an integer number (5940159971329).

It is a 3-persistent number, because k⋅11880319942657 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

It is a Proth number, since it is equal to 2832489 ⋅ 2²² + 1 and 2832489 < 2²².

Almost surely, 2^{11880319942657} is an apocalyptic number.

It is an amenable number.

11880319942657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11880319942657 is an equidigital number, since it uses as much as digits as its factorization.

11880319942657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 64.

The spelling of 11880319942657 in words is "eleven trillion, eight hundred eighty billion, three hundred nineteen million, nine hundred forty-two thousand, six hundred fifty-seven".