1187111670439 has 2 divisors, whose sum is σ = 1187111670440. Its totient is φ = 1187111670438.

The previous prime is 1187111670427. The next prime is 1187111670461. The reversal of 1187111670439 is 9340761117811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1187111670439 - 2²³ = 1187103281831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1187111670392 and 1187111670401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1187111670739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593555835219 + 593555835220.

It is an arithmetic number, because the mean of its divisors is an integer number (593555835220).

Almost surely, 2^{1187111670439} is an apocalyptic number.

1187111670439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187111670439 is an equidigital number, since it uses as much as digits as its factorization.

1187111670439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 49.

The spelling of 1187111670439 in words is "one trillion, one hundred eighty-seven billion, one hundred eleven million, six hundred seventy thousand, four hundred thirty-nine".