1873788311966 has 32 divisors (see below), whose sum is σ = 2963469112128. Its totient is φ = 886816972800.

The previous prime is 1873788311959. The next prime is 1873788312017. The reversal of 1873788311966 is 6691138873781.

It is a happy number.

It is a super-3 number, since 3×1873788311966³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1873788311896 and 1873788311905.

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, 49031666 + ... + 49069866.

It is an arithmetic number, because the mean of its divisors is an integer number (92608409754).

Almost surely, 2^{1873788311966} is an apocalyptic number.

1873788311966 is a deficient number, since it is larger than the sum of its proper divisors (1089680800162).

1873788311966 is a wasteful number, since it uses less digits than its factorization.

1873788311966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49316.

The product of its digits is 73156608, while the sum is 68.

The spelling of 1873788311966 in words is "one trillion, eight hundred seventy-three billion, seven hundred eighty-eight million, three hundred eleven thousand, nine hundred sixty-six".