78098988342 has 16 divisors (see below), whose sum is σ = 156201242112. Its totient is φ = 26032451880.

The previous prime is 78098988313. The next prime is 78098988367. The reversal of 78098988342 is 24388989087.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266467 + ... + 476657.

It is an arithmetic number, because the mean of its divisors is an integer number (9762577632).

Almost surely, 2^78098988342 is an apocalyptic number.

78098988342 is an abundant number, since it is smaller than the sum of its proper divisors (78102253770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78098988342 is a wasteful number, since it uses less digits than its factorization.

78098988342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272123.

The product of its (nonzero) digits is 55738368, while the sum is 66.

The spelling of 78098988342 in words is "seventy-eight billion, ninety-eight million, nine hundred eighty-eight thousand, three hundred forty-two".