400508581473 has 96 divisors (see below), whose sum is σ = 777575635200. Its totient is φ = 191846430720.

The previous prime is 400508581471. The next prime is 400508581481. The reversal of 400508581473 is 374185805004.

400508581473 is a `hidden beast` number, since 400 + 50 + 8 + 58 + 147 + 3 = 666.

It is not a de Polignac number, because 400508581473 - 2¹ = 400508581471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400508581471) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 8562253 + ... + 8608901.

It is an arithmetic number, because the mean of its divisors is an integer number (8099746200).

Almost surely, 2^400508581473 is an apocalyptic number.

It is an amenable number.

400508581473 is a deficient number, since it is larger than the sum of its proper divisors (377067053727).

400508581473 is a wasteful number, since it uses less digits than its factorization.

400508581473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47639 (or 47636 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 400508581473 in words is "four hundred billion, five hundred eight million, five hundred eighty-one thousand, four hundred seventy-three".