19051572380852 has 18 divisors (see below), whose sum is σ = 36646722907074. Its totient is φ = 8659805627440.

The previous prime is 19051572380849. The next prime is 19051572380909. The reversal of 19051572380852 is 25808327515091.

It can be written as a sum of positive squares in only one way, i.e., 16007712929296 + 3043859451556 = 4000964^2 + 1744666^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19681375943 + ... + 19681376910.

It is an arithmetic number, because the mean of its divisors is an integer number (2035929050393).

Almost surely, 2^{19051572380852} is an apocalyptic number.

It is an amenable number.

19051572380852 is a deficient number, since it is larger than the sum of its proper divisors (17595150526222).

19051572380852 is a wasteful number, since it uses less digits than its factorization.

19051572380852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39362752879 (or 39362752866 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 56.

The spelling of 19051572380852 in words is "nineteen trillion, fifty-one billion, five hundred seventy-two million, three hundred eighty thousand, eight hundred fifty-two".