88669939997 has 2 divisors, whose sum is σ = 88669939998. Its totient is φ = 88669939996.

The previous prime is 88669939877. The next prime is 88669940003. The reversal of 88669939997 is 79993996688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72816863716 + 15853076281 = 269846^2 + 125909^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88669939997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88669935997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44334969998 + 44334969999.

It is an arithmetic number, because the mean of its divisors is an integer number (44334969999).

Almost surely, 2^88669939997 is an apocalyptic number.

It is an amenable number.

88669939997 is a deficient number, since it is larger than the sum of its proper divisors (1).

88669939997 is an equidigital number, since it uses as much as digits as its factorization.

88669939997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857026816, while the sum is 83.

The spelling of 88669939997 in words is "eighty-eight billion, six hundred sixty-nine million, nine hundred thirty-nine thousand, nine hundred ninety-seven".