89079878455 has 4 divisors (see below), whose sum is σ = 106895854152. Its totient is φ = 71263902760.

The previous prime is 89079878449. The next prime is 89079878551. The reversal of 89079878455 is 55487897098.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89079878455 - 2¹³ = 89079870263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8907987841 + ... + 8907987850.

It is an arithmetic number, because the mean of its divisors is an integer number (26723963538).

Almost surely, 2^89079878455 is an apocalyptic number.

89079878455 is a deficient number, since it is larger than the sum of its proper divisors (17815975697).

89079878455 is a wasteful number, since it uses less digits than its factorization.

89079878455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17815975696.

The product of its (nonzero) digits is 203212800, while the sum is 70.

The spelling of 89079878455 in words is "eighty-nine billion, seventy-nine million, eight hundred seventy-eight thousand, four hundred fifty-five".