1916672476240 has 20 divisors (see below), whose sum is σ = 4456263507444. Its totient is φ = 766668990464.

The previous prime is 1916672476189. The next prime is 1916672476363. The reversal of 1916672476240 is 426742766191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1250254949904 + 666417526336 = 1118148^2 + 816344^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11979202897 + ... + 11979203056.

Almost surely, 2^{1916672476240} is an apocalyptic number.

1916672476240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916672476240 is an abundant number, since it is smaller than the sum of its proper divisors (2539591031204).

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

1916672476240 is a wasteful number, since it uses less digits than its factorization.

1916672476240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23958405966 (or 23958405960 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 1916672476240 in words is "one trillion, nine hundred sixteen billion, six hundred seventy-two million, four hundred seventy-six thousand, two hundred forty".