89215447679 has 8 divisors (see below), whose sum is σ = 91299280512. Its totient is φ = 87132026520.

The previous prime is 89215447669. The next prime is 89215447691. The reversal of 89215447679 is 97674451298.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89215447679 is a prime.

It is a super-2 number, since 2×89215447679² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89215447669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359552 + ... + 554714.

It is an arithmetic number, because the mean of its divisors is an integer number (11412410064).

Almost surely, 2^89215447679 is an apocalyptic number.

89215447679 is a deficient number, since it is larger than the sum of its proper divisors (2083832833).

89215447679 is a wasteful number, since it uses less digits than its factorization.

89215447679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205837.

The product of its digits is 30481920, while the sum is 62.

The spelling of 89215447679 in words is "eighty-nine billion, two hundred fifteen million, four hundred forty-seven thousand, six hundred seventy-nine".