11952457787 has 2 divisors, whose sum is σ = 11952457788. Its totient is φ = 11952457786.

The previous prime is 11952457757. The next prime is 11952457789. The reversal of 11952457787 is 78775425911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11952457787 - 2¹² = 11952453691 is a prime.

It is a super-2 number, since 2×11952457787² (a number of 21 digits) contains 22 as substring.

Together with 11952457789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11952457789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5976228893 + 5976228894.

It is an arithmetic number, because the mean of its divisors is an integer number (5976228894).

Almost surely, 2^11952457787 is an apocalyptic number.

11952457787 is a deficient number, since it is larger than the sum of its proper divisors (1).

11952457787 is an equidigital number, since it uses as much as digits as its factorization.

11952457787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4939200, while the sum is 56.

The spelling of 11952457787 in words is "eleven billion, nine hundred fifty-two million, four hundred fifty-seven thousand, seven hundred eighty-seven".