1381947045192 has 80 divisors (see below), whose sum is σ = 4423692936960. Its totient is φ = 394842011616.

The previous prime is 1381947045043. The next prime is 1381947045221. The reversal of 1381947045192 is 2915407491831.

1381947045192 is a `hidden beast` number, since 1 + 3 + 81 + 9 + 47 + 0 + 4 + 519 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 152326488 + ... + 152335559.

It is an arithmetic number, because the mean of its divisors is an integer number (55296161712).

Almost surely, 2^{1381947045192} is an apocalyptic number.

1381947045192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1381947045192 is an abundant number, since it is smaller than the sum of its proper divisors (3041745891768).

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

1381947045192 is a wasteful number, since it uses less digits than its factorization.

1381947045192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304662072 (or 304662059 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1381947045192 in words is "one trillion, three hundred eighty-one billion, nine hundred forty-seven million, forty-five thousand, one hundred ninety-two".