19210138781046 has 32 divisors (see below), whose sum is σ = 39125070808416. Its totient is φ = 6286317024000.

The previous prime is 19210138781033. The next prime is 19210138781083. The reversal of 19210138781046 is 64018783101291.

It is a self number, because there is not a number n which added to its sum of digits gives 19210138781046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50180445 + ... + 50561816.

It is an arithmetic number, because the mean of its divisors is an integer number (1222658462763).

Almost surely, 2^{19210138781046} is an apocalyptic number.

19210138781046 is an abundant number, since it is smaller than the sum of its proper divisors (19914932027370).

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

19210138781046 is a wasteful number, since it uses less digits than its factorization.

19210138781046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100742848.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 19210138781046 in words is "nineteen trillion, two hundred ten billion, one hundred thirty-eight million, seven hundred eighty-one thousand, forty-six".