19780831193032 has 32 divisors (see below), whose sum is σ = 45648071985600. Its totient is φ = 7825383768384.

The previous prime is 19780831193009. The next prime is 19780831193033. The reversal of 19780831193032 is 23039113808791.

It is not an unprimeable number, because it can be changed into a prime (19780831193033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13585734982 + ... + 13585736437.

It is an arithmetic number, because the mean of its divisors is an integer number (1426502249550).

Almost surely, 2^{19780831193032} is an apocalyptic number.

It is an amenable number.

19780831193032 is an abundant number, since it is smaller than the sum of its proper divisors (25867240792568).

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

19780831193032 is a wasteful number, since it uses less digits than its factorization.

19780831193032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27171471445 (or 27171471441 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 19780831193032 in words is "nineteen trillion, seven hundred eighty billion, eight hundred thirty-one million, one hundred ninety-three thousand, thirty-two".