48666688666681 has 2 divisors, whose sum is σ = 48666688666682. Its totient is φ = 48666688666680.

The previous prime is 48666688666613. The next prime is 48666688666697. The reversal of 48666688666681 is 18666688666684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48615630745081 + 51057921600 = 6972491^2 + 225960^2 .

It is a cyclic number.

It is not a de Polignac number, because 48666688666681 - 2¹⁷ = 48666688535609 is a prime.

It is a super-2 number, since 2×48666688666681² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48666688966681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24333344333340 + 24333344333341.

It is an arithmetic number, because the mean of its divisors is an integer number (24333344333341).

Almost surely, 2^{48666688666681} is an apocalyptic number.

It is an amenable number.

48666688666681 is a deficient number, since it is larger than the sum of its proper divisors (1).

48666688666681 is an equidigital number, since it uses as much as digits as its factorization.

48666688666681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27518828544, while the sum is 85.

The spelling of 48666688666681 in words is "forty-eight trillion, six hundred sixty-six billion, six hundred eighty-eight million, six hundred sixty-six thousand, six hundred eighty-one".