78098889087 has 24 divisors (see below), whose sum is σ = 114513413040. Its totient is φ = 51279782400.

The previous prime is 78098889067. The next prime is 78098889103.

78098889087 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78098889087 - 2¹² = 78098884991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78098889067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6342837 + ... + 6355137.

It is an arithmetic number, because the mean of its divisors is an integer number (4771392210).

Almost surely, 2^78098889087 is an apocalyptic number.

78098889087 is a deficient number, since it is larger than the sum of its proper divisors (36414523953).

78098889087 is a wasteful number, since it uses less digits than its factorization.

78098889087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22903 (or 22900 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 72.

The spelling of 78098889087 in words is "seventy-eight billion, ninety-eight million, eight hundred eighty-nine thousand, eighty-seven".