1183988401492 has 12 divisors (see below), whose sum is σ = 2231362756756. Its totient is φ = 546456185280.

The previous prime is 1183988401487. The next prime is 1183988401529. The reversal of 1183988401492 is 2941048893811.

It can be written as a sum of positive squares in 2 ways, for example, as 87121786896 + 1096866614596 = 295164^2 + 1047314^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11384503809 + ... + 11384503912.

Almost surely, 2^{1183988401492} is an apocalyptic number.

It is an amenable number.

1183988401492 is a deficient number, since it is larger than the sum of its proper divisors (1047374355264).

1183988401492 is a wasteful number, since it uses less digits than its factorization.

1183988401492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22769007738 (or 22769007736 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 1183988401492 in words is "one trillion, one hundred eighty-three billion, nine hundred eighty-eight million, four hundred one thousand, four hundred ninety-two".