8231262479920 has 80 divisors (see below), whose sum is σ = 19382917628160. Its totient is φ = 3250429952000.

The previous prime is 8231262479903. The next prime is 8231262479983. The reversal of 8231262479920 is 299742621328.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3662145 + ... + 5465695.

It is an arithmetic number, because the mean of its divisors is an integer number (242286470352).

Almost surely, 2^{8231262479920} is an apocalyptic number.

8231262479920 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 8231262479920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9691458814080).

8231262479920 is an abundant number, since it is smaller than the sum of its proper divisors (11151655148240).

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

8231262479920 is a wasteful number, since it uses less digits than its factorization.

8231262479920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804294 (or 1804288 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 8231262479920 in words is "eight trillion, two hundred thirty-one billion, two hundred sixty-two million, four hundred seventy-nine thousand, nine hundred twenty".