11880319942649 has 2 divisors, whose sum is σ = 11880319942650. Its totient is φ = 11880319942648.

The previous prime is 11880319942609. The next prime is 11880319942657. The reversal of 11880319942649 is 94624991308811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9244226746624 + 2636093196025 = 3040432^2 + 1623605^2 .

It is a cyclic number.

It is not a de Polignac number, because 11880319942649 - 2²⁴ = 11880303165433 is a prime.

It is a super-2 number, since 2×11880319942649² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11880319942609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5940159971324 + 5940159971325.

It is an arithmetic number, because the mean of its divisors is an integer number (5940159971325).

Almost surely, 2^{11880319942649} is an apocalyptic number.

It is an amenable number.

11880319942649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11880319942649 is an equidigital number, since it uses as much as digits as its factorization.

11880319942649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26873856, while the sum is 65.

The spelling of 11880319942649 in words is "eleven trillion, eight hundred eighty billion, three hundred nineteen million, nine hundred forty-two thousand, six hundred forty-nine".