1572481105820 has 12 divisors (see below), whose sum is σ = 3302210322264. Its totient is φ = 628992442320.

The previous prime is 1572481105801. The next prime is 1572481105841. The reversal of 1572481105820 is 285011842751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39312027626 + ... + 39312027665.

It is an arithmetic number, because the mean of its divisors is an integer number (275184193522).

Almost surely, 2^{1572481105820} is an apocalyptic number.

1572481105820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1572481105820 is an abundant number, since it is smaller than the sum of its proper divisors (1729729216444).

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

1572481105820 is a wasteful number, since it uses less digits than its factorization.

1572481105820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78624055300 (or 78624055298 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 44.

The spelling of 1572481105820 in words is "one trillion, five hundred seventy-two billion, four hundred eighty-one million, one hundred five thousand, eight hundred twenty".