1916547819406 has 64 divisors (see below), whose sum is σ = 3238850748672. Its totient is φ = 842988640000.

The previous prime is 1916547819379. The next prime is 1916547819409. The reversal of 1916547819406 is 6049187456191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916547819409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364290816 + ... + 364296076.

It is an arithmetic number, because the mean of its divisors is an integer number (50607042948).

Almost surely, 2^{1916547819406} is an apocalyptic number.

1916547819406 is a deficient number, since it is larger than the sum of its proper divisors (1322302929266).

1916547819406 is a wasteful number, since it uses less digits than its factorization.

1916547819406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8529.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 1916547819406 in words is "one trillion, nine hundred sixteen billion, five hundred forty-seven million, eight hundred nineteen thousand, four hundred six".