400171112997 has 8 divisors (see below), whose sum is σ = 534793729344. Its totient is φ = 266164619328.

The previous prime is 400171112977. The next prime is 400171113053. The reversal of 400171112997 is 799211171004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400171112997 - 2¹⁰ = 400171111973 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400171112917) 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, 154029153 + ... + 154031750.

It is an arithmetic number, because the mean of its divisors is an integer number (66849216168).

Almost surely, 2^400171112997 is an apocalyptic number.

It is an amenable number.

400171112997 is a deficient number, since it is larger than the sum of its proper divisors (134622616347).

400171112997 is a wasteful number, since it uses less digits than its factorization.

400171112997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308061339.

The product of its (nonzero) digits is 31752, while the sum is 42.

The spelling of 400171112997 in words is "four hundred billion, one hundred seventy-one million, one hundred twelve thousand, nine hundred ninety-seven".