89853951547 has 2 divisors, whose sum is σ = 89853951548. Its totient is φ = 89853951546.

The previous prime is 89853951437. The next prime is 89853951553. The reversal of 89853951547 is 74515935898.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89853951547 is a prime.

It is a super-2 number, since 2×89853951547² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89853951347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44926975773 + 44926975774.

It is an arithmetic number, because the mean of its divisors is an integer number (44926975774).

Almost surely, 2^89853951547 is an apocalyptic number.

89853951547 is a deficient number, since it is larger than the sum of its proper divisors (1).

89853951547 is an equidigital number, since it uses as much as digits as its factorization.

89853951547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432000, while the sum is 64.

The spelling of 89853951547 in words is "eighty-nine billion, eight hundred fifty-three million, nine hundred fifty-one thousand, five hundred forty-seven".