1171471440807 has 16 divisors (see below), whose sum is σ = 1735569531360. Its totient is φ = 780955632000.

The previous prime is 1171471440793. The next prime is 1171471440809. The reversal of 1171471440807 is 7080441741711.

It is a happy number.

1171471440807 is a `hidden beast` number, since 1 + 171 + 4 + 71 + 4 + 408 + 0 + 7 = 666.

It is not a de Polignac number, because 1171471440807 - 2¹⁹ = 1171470916519 is a prime.

It is a super-2 number, since 2×1171471440807² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171471440809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163807 + ... + 1539407.

It is an arithmetic number, because the mean of its divisors is an integer number (108473095710).

Almost surely, 2^{1171471440807} is an apocalyptic number.

1171471440807 is a deficient number, since it is larger than the sum of its proper divisors (564098090553).

1171471440807 is a wasteful number, since it uses less digits than its factorization.

1171471440807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407151 (or 1407145 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 45.

The spelling of 1171471440807 in words is "one trillion, one hundred seventy-one billion, four hundred seventy-one million, four hundred forty thousand, eight hundred seven".