148968846857 has 2 divisors, whose sum is σ = 148968846858. Its totient is φ = 148968846856.

The previous prime is 148968846839. The next prime is 148968846889. The reversal of 148968846857 is 758648869841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147349267321 + 1619579536 = 383861^2 + 40244^2 .

It is an emirp because it is prime and its reverse (758648869841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148968846857 - 2¹⁴ = 148968830473 is a prime.

It is not a weakly prime, because it can be changed into another prime (148968846157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74484423428 + 74484423429.

It is an arithmetic number, because the mean of its divisors is an integer number (74484423429).

Almost surely, 2^148968846857 is an apocalyptic number.

It is an amenable number.

148968846857 is a deficient number, since it is larger than the sum of its proper divisors (1).

148968846857 is an equidigital number, since it uses as much as digits as its factorization.

148968846857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 743178240, while the sum is 74.

The spelling of 148968846857 in words is "one hundred forty-eight billion, nine hundred sixty-eight million, eight hundred forty-six thousand, eight hundred fifty-seven".