618747192487 has 2 divisors, whose sum is σ = 618747192488. Its totient is φ = 618747192486.

The previous prime is 618747192473. The next prime is 618747192541. The reversal of 618747192487 is 784291747816.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-618747192487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618747190487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309373596243 + 309373596244.

It is an arithmetic number, because the mean of its divisors is an integer number (309373596244).

Almost surely, 2^618747192487 is an apocalyptic number.

618747192487 is a deficient number, since it is larger than the sum of its proper divisors (1).

618747192487 is an equidigital number, since it uses as much as digits as its factorization.

618747192487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 64.

The spelling of 618747192487 in words is "six hundred eighteen billion, seven hundred forty-seven million, one hundred ninety-two thousand, four hundred eighty-seven".