88223727649 has 2 divisors, whose sum is σ = 88223727650. Its totient is φ = 88223727648.

The previous prime is 88223727617. The next prime is 88223727661. The reversal of 88223727649 is 94672732288.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75813767649 + 12409960000 = 275343^2 + 111400^2 .

It is a cyclic number.

It is not a de Polignac number, because 88223727649 - 2⁵ = 88223727617 is a prime.

It is a super-2 number, since 2×88223727649² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 88223727593 and 88223727602.

It is not a weakly prime, because it can be changed into another prime (88223727679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44111863824 + 44111863825.

It is an arithmetic number, because the mean of its divisors is an integer number (44111863825).

Almost surely, 2^88223727649 is an apocalyptic number.

It is an amenable number.

88223727649 is a deficient number, since it is larger than the sum of its proper divisors (1).

88223727649 is an equidigital number, since it uses as much as digits as its factorization.

88223727649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024, while the sum is 58.

The spelling of 88223727649 in words is "eighty-eight billion, two hundred twenty-three million, seven hundred twenty-seven thousand, six hundred forty-nine".