1371472013556 has 72 divisors (see below), whose sum is σ = 3556707198408. Its totient is φ = 445332096000.

The previous prime is 1371472013519. The next prime is 1371472013581. The reversal of 1371472013556 is 6553102741731.

1371472013556 is a `hidden beast` number, since 1 + 3 + 7 + 14 + 72 + 0 + 13 + 556 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 140850090000 + 1230621923556 = 375300^2 + 1109334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272776 + ... + 1678496.

It is an arithmetic number, because the mean of its divisors is an integer number (49398711089).

Almost surely, 2^{1371472013556} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1371472013556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778353599204).

1371472013556 is an abundant number, since it is smaller than the sum of its proper divisors (2185235184852).

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

1371472013556 is a wasteful number, since it uses less digits than its factorization.

1371472013556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406433 (or 1406428 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 1371472013556 in words is "one trillion, three hundred seventy-one billion, four hundred seventy-two million, thirteen thousand, five hundred fifty-six".