1381853916126 has 24 divisors (see below), whose sum is σ = 3170135455344. Its totient is φ = 433522797120.

The previous prime is 1381853916103. The next prime is 1381853916181. The reversal of 1381853916126 is 6216193581831.

1381853916126 is a `hidden beast` number, since 1 + 3 + 8 + 18 + 5 + 3 + 9 + 1 + 612 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2257930930 + ... + 2257931541.

It is an arithmetic number, because the mean of its divisors is an integer number (132088977306).

Almost surely, 2^{1381853916126} is an apocalyptic number.

1381853916126 is an abundant number, since it is smaller than the sum of its proper divisors (1788281539218).

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

1381853916126 is a wasteful number, since it uses less digits than its factorization.

1381853916126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515862496 (or 4515862493 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 1381853916126 in words is "one trillion, three hundred eighty-one billion, eight hundred fifty-three million, nine hundred sixteen thousand, one hundred twenty-six".