12473517140 has 96 divisors (see below), whose sum is σ = 30932181504. Its totient is φ = 4136670720.

The previous prime is 12473517139. The next prime is 12473517163. The reversal of 12473517140 is 4171537421.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 12473517140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 514982 + ... + 538658.

It is an arithmetic number, because the mean of its divisors is an integer number (322210224).

Almost surely, 2^12473517140 is an apocalyptic number.

12473517140 is a gapful number since it is divisible by the number (10) 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 12473517140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15466090752).

12473517140 is an abundant number, since it is smaller than the sum of its proper divisors (18458664364).

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

12473517140 is a wasteful number, since it uses less digits than its factorization.

12473517140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23817 (or 23815 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 12473517140 in words is "twelve billion, four hundred seventy-three million, five hundred seventeen thousand, one hundred forty".