1916778052701 has 24 divisors (see below), whose sum is σ = 2773528854720. Its totient is φ = 1275615777600.

The previous prime is 1916778052699. The next prime is 1916778052711. The reversal of 1916778052701 is 1072508776191.

It is not a de Polignac number, because 1916778052701 - 2¹ = 1916778052699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916778052711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11899185 + ... + 12059193.

It is an arithmetic number, because the mean of its divisors is an integer number (115563702280).

Almost surely, 2^{1916778052701} is an apocalyptic number.

It is an amenable number.

1916778052701 is a deficient number, since it is larger than the sum of its proper divisors (856750802019).

1916778052701 is a wasteful number, since it uses less digits than its factorization.

1916778052701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162337 (or 162334 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 54.

The spelling of 1916778052701 in words is "one trillion, nine hundred sixteen billion, seven hundred seventy-eight million, fifty-two thousand, seven hundred one".