1381552413876 has 36 divisors (see below), whose sum is σ = 3495549064644. Its totient is φ = 460083417600.

The previous prime is 1381552413851. The next prime is 1381552413929. The reversal of 1381552413876 is 6783142551831.

1381552413876 is a `hidden beast` number, since 1 + 3 + 8 + 1 + 552 + 4 + 1 + 3 + 87 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 548823162276 + 832729251600 = 740826^2 + 912540^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 18046845 + ... + 18123236.

It is an arithmetic number, because the mean of its divisors is an integer number (97098585129).

Almost surely, 2^{1381552413876} is an apocalyptic number.

It is an amenable number.

1381552413876 is an abundant number, since it is smaller than the sum of its proper divisors (2113996650768).

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

1381552413876 is a wasteful number, since it uses less digits than its factorization.

1381552413876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36171152 (or 36171147 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 1381552413876 in words is "one trillion, three hundred eighty-one billion, five hundred fifty-two million, four hundred thirteen thousand, eight hundred seventy-six".