8319373920 has 720 divisors, whose sum is σ = 35015915088. Its totient is φ = 1833891840.

The previous prime is 8319373897. The next prime is 8319373973. The reversal of 8319373920 is 293739138.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 124169727 + ... + 124169793.

Almost surely, 2^8319373920 is an apocalyptic number.

8319373920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8319373920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17507957544).

8319373920 is an abundant number, since it is smaller than the sum of its proper divisors (26696541168).

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

8319373920 is a wasteful number, since it uses less digits than its factorization.

8319373920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 8319373920 is about 91210.6020153359. The cubic root of 8319373920 is about 2026.2679795353.

The spelling of 8319373920 in words is "eight billion, three hundred nineteen million, three hundred seventy-three thousand, nine hundred twenty".