1881496993239 has 12 divisors (see below), whose sum is σ = 2717742993576. Its totient is φ = 1254319737552.

The previous prime is 1881496993237. The next prime is 1881496993249. The reversal of 1881496993239 is 9323996941881.

1881496993239 is a `hidden beast` number, since 18 + 8 + 1 + 496 + 9 + 93 + 2 + 39 = 666.

It is not a de Polignac number, because 1881496993239 - 2¹ = 1881496993237 is a prime.

It is a super-2 number, since 2×1881496993239² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881496993237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127197 + ... + 1944009.

It is an arithmetic number, because the mean of its divisors is an integer number (226478582798).

Almost surely, 2^{1881496993239} is an apocalyptic number.

1881496993239 is a deficient number, since it is larger than the sum of its proper divisors (836246000337).

1881496993239 is a wasteful number, since it uses less digits than its factorization.

1881496993239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931886 (or 1931883 counting only the distinct ones).

The product of its digits is 181398528, while the sum is 72.

The spelling of 1881496993239 in words is "one trillion, eight hundred eighty-one billion, four hundred ninety-six million, nine hundred ninety-three thousand, two hundred thirty-nine".