400717272549 has 16 divisors (see below), whose sum is σ = 582888720960. Its totient is φ = 242847605760.

The previous prime is 400717272541. The next prime is 400717272563. The reversal of 400717272549 is 945272717004.

It is not a de Polignac number, because 400717272549 - 2³ = 400717272541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400717272498 and 400717272507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400717272541) 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, 462597 + ... + 1007685.

It is an arithmetic number, because the mean of its divisors is an integer number (36430545060).

Almost surely, 2^400717272549 is an apocalyptic number.

It is an amenable number.

400717272549 is a deficient number, since it is larger than the sum of its proper divisors (182171448411).

400717272549 is a wasteful number, since it uses less digits than its factorization.

400717272549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567380.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 400717272549 in words is "four hundred billion, seven hundred seventeen million, two hundred seventy-two thousand, five hundred forty-nine".