89951015761 has 2 divisors, whose sum is σ = 89951015762. Its totient is φ = 89951015760.

The previous prime is 89951015731. The next prime is 89951015789. The reversal of 89951015761 is 16751015998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59594574400 + 30356441361 = 244120^2 + 174231^2 .

It is a cyclic number.

It is not a de Polignac number, because 89951015761 - 2⁵ = 89951015729 is a prime.

It is a super-3 number, since 3×89951015761³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89951015699 and 89951015708.

It is not a weakly prime, because it can be changed into another prime (89951015701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44975507880 + 44975507881.

It is an arithmetic number, because the mean of its divisors is an integer number (44975507881).

Almost surely, 2^89951015761 is an apocalyptic number.

It is an amenable number.

89951015761 is a deficient number, since it is larger than the sum of its proper divisors (1).

89951015761 is an equidigital number, since it uses as much as digits as its factorization.

89951015761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 52.

The spelling of 89951015761 in words is "eighty-nine billion, nine hundred fifty-one million, fifteen thousand, seven hundred sixty-one".