11811958007 has 2 divisors, whose sum is σ = 11811958008. Its totient is φ = 11811958006.

The previous prime is 11811957977. The next prime is 11811958009. The reversal of 11811958007 is 70085911811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11811958007 - 2¹⁶ = 11811892471 is a prime.

Together with 11811958009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11811958009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5905979003 + 5905979004.

It is an arithmetic number, because the mean of its divisors is an integer number (5905979004).

Almost surely, 2^11811958007 is an apocalyptic number.

11811958007 is a deficient number, since it is larger than the sum of its proper divisors (1).

11811958007 is an equidigital number, since it uses as much as digits as its factorization.

11811958007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 41.

The spelling of 11811958007 in words is "eleven billion, eight hundred eleven million, nine hundred fifty-eight thousand, seven".