618872892977 has 2 divisors, whose sum is σ = 618872892978. Its totient is φ = 618872892976.

The previous prime is 618872892971. The next prime is 618872893027. The reversal of 618872892977 is 779298278816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529949056576 + 88923836401 = 727976^2 + 298201^2 .

It is a cyclic number.

It is not a de Polignac number, because 618872892977 - 2⁸ = 618872892721 is a prime.

It is not a weakly prime, because it can be changed into another prime (618872892971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309436446488 + 309436446489.

It is an arithmetic number, because the mean of its divisors is an integer number (309436446489).

Almost surely, 2^618872892977 is an apocalyptic number.

It is an amenable number.

618872892977 is a deficient number, since it is larger than the sum of its proper divisors (1).

618872892977 is an equidigital number, since it uses as much as digits as its factorization.

618872892977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 341397504, while the sum is 74.

The spelling of 618872892977 in words is "six hundred eighteen billion, eight hundred seventy-two million, eight hundred ninety-two thousand, nine hundred seventy-seven".