88721141969 has 2 divisors, whose sum is σ = 88721141970. Its totient is φ = 88721141968.

The previous prime is 88721141933. The next prime is 88721141981. The reversal of 88721141969 is 96914112788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84320544400 + 4400597569 = 290380^2 + 66337^2 .

It is a cyclic number.

It is not a de Polignac number, because 88721141969 - 2²⁰ = 88720093393 is a prime.

It is a super-2 number, since 2×88721141969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88721141569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44360570984 + 44360570985.

It is an arithmetic number, because the mean of its divisors is an integer number (44360570985).

Almost surely, 2^88721141969 is an apocalyptic number.

It is an amenable number.

88721141969 is a deficient number, since it is larger than the sum of its proper divisors (1).

88721141969 is an equidigital number, since it uses as much as digits as its factorization.

88721141969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The spelling of 88721141969 in words is "eighty-eight billion, seven hundred twenty-one million, one hundred forty-one thousand, nine hundred sixty-nine".