12572420520 has 128 divisors (see below), whose sum is σ = 41317879680. Its totient is φ = 3035136000.

The previous prime is 12572420503. The next prime is 12572420557. The reversal of 12572420520 is 2502427521.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 298360 + ... + 337880.

It is an arithmetic number, because the mean of its divisors is an integer number (322795935).

Almost surely, 2^12572420520 is an apocalyptic number.

12572420520 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 12572420520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20658939840).

12572420520 is an abundant number, since it is smaller than the sum of its proper divisors (28745459160).

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

12572420520 is a wasteful number, since it uses less digits than its factorization.

12572420520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39787 (or 39783 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The spelling of 12572420520 in words is "twelve billion, five hundred seventy-two million, four hundred twenty thousand, five hundred twenty".