118477770487 has 2 divisors, whose sum is σ = 118477770488. Its totient is φ = 118477770486.

The previous prime is 118477770473. The next prime is 118477770493. The reversal of 118477770487 is 784077774811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118477770487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118477770287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59238885243 + 59238885244.

It is an arithmetic number, because the mean of its divisors is an integer number (59238885244).

Almost surely, 2^118477770487 is an apocalyptic number.

118477770487 is a deficient number, since it is larger than the sum of its proper divisors (1).

118477770487 is an equidigital number, since it uses as much as digits as its factorization.

118477770487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17210368, while the sum is 61.

The spelling of 118477770487 in words is "one hundred eighteen billion, four hundred seventy-seven million, seven hundred seventy thousand, four hundred eighty-seven".