78831903750 has 80 divisors (see below), whose sum is σ = 197363560944. Its totient is φ = 20984832000.

The previous prime is 78831903749. The next prime is 78831903757. The reversal of 78831903750 is 5730913887.

It is a junction number, because it is equal to n+sod(n) for n = 78831903693 and 78831903702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78831903757) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2145534 + ... + 2181966.

Almost surely, 2^78831903750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78831903750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98681780472).

78831903750 is an abundant number, since it is smaller than the sum of its proper divisors (118531657194).

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

78831903750 is a wasteful number, since it uses less digits than its factorization.

78831903750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37035 (or 37020 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 78831903750 in words is "seventy-eight billion, eight hundred thirty-one million, nine hundred three thousand, seven hundred fifty".