3888888888761 has 2 divisors, whose sum is σ = 3888888888762. Its totient is φ = 3888888888760.

The previous prime is 3888888888743. The next prime is 3888888888817. The reversal of 3888888888761 is 1678888888883.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2620370987536 + 1268517901225 = 1618756^2 + 1126285^2 .

It is a cyclic number.

It is not a de Polignac number, because 3888888888761 - 2¹⁸ = 3888888626617 is a prime.

It is not a weakly prime, because it can be changed into another prime (3888888888361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1944444444380 + 1944444444381.

It is an arithmetic number, because the mean of its divisors is an integer number (1944444444381).

Almost surely, 2^{3888888888761} is an apocalyptic number.

It is an amenable number.

3888888888761 is a deficient number, since it is larger than the sum of its proper divisors (1).

3888888888761 is an equidigital number, since it uses as much as digits as its factorization.

3888888888761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16911433728, while the sum is 89.

The spelling of 3888888888761 in words is "three trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, seven hundred sixty-one".