89442349651 has 2 divisors, whose sum is σ = 89442349652. Its totient is φ = 89442349650.

The previous prime is 89442349567. The next prime is 89442349673. The reversal of 89442349651 is 15694324498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89442349651 - 2⁷ = 89442349523 is a prime.

It is a super-2 number, since 2×89442349651² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89442349592 and 89442349601.

It is not a weakly prime, because it can be changed into another prime (89442340651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44721174825 + 44721174826.

It is an arithmetic number, because the mean of its divisors is an integer number (44721174826).

Almost surely, 2^89442349651 is an apocalyptic number.

89442349651 is a deficient number, since it is larger than the sum of its proper divisors (1).

89442349651 is an equidigital number, since it uses as much as digits as its factorization.

89442349651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 55.

The spelling of 89442349651 in words is "eighty-nine billion, four hundred forty-two million, three hundred forty-nine thousand, six hundred fifty-one".