78898903050 has 144 divisors (see below), whose sum is σ = 216402086880. Its totient is φ = 19008950400.

The previous prime is 78898903021. The next prime is 78898903067. The reversal of 78898903050 is 5030989887.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2945116 + ... + 2971784.

It is an arithmetic number, because the mean of its divisors is an integer number (1502792270).

Almost surely, 2^78898903050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78898903050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108201043440).

78898903050 is an abundant number, since it is smaller than the sum of its proper divisors (137503183830).

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

78898903050 is a wasteful number, since it uses less digits than its factorization.

78898903050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26869 (or 26853 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 78898903050 in words is "seventy-eight billion, eight hundred ninety-eight million, nine hundred three thousand, fifty".