1171788404428 has 24 divisors (see below), whose sum is σ = 2062627736400. Its totient is φ = 582473755968.

The previous prime is 1171788404411. The next prime is 1171788404429. The reversal of 1171788404428 is 8244048871711.

It is not an unprimeable number, because it can be changed into a prime (1171788404429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324658 + ... + 1564921.

It is an arithmetic number, because the mean of its divisors is an integer number (85942822350).

Almost surely, 2^{1171788404428} is an apocalyptic number.

It is an amenable number.

1171788404428 is a deficient number, since it is larger than the sum of its proper divisors (890839331972).

1171788404428 is a wasteful number, since it uses less digits than its factorization.

1171788404428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890489 (or 1890487 counting only the distinct ones).

The product of its (nonzero) digits is 3211264, while the sum is 55.

The spelling of 1171788404428 in words is "one trillion, one hundred seventy-one billion, seven hundred eighty-eight million, four hundred four thousand, four hundred twenty-eight".