400611221475493 has 8 divisors (see below), whose sum is σ = 457843575434688. Its totient is φ = 343379412381984.

The previous prime is 400611221475419. The next prime is 400611221475503. The reversal of 400611221475493 is 394574122116004.

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

It is a cyclic number.

It is not a de Polignac number, because 400611221475493 - 2⁴⁵ = 365426849386661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400611221475793) 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, 134639671 + ... + 137582932.

It is an arithmetic number, because the mean of its divisors is an integer number (57230446929336).

Almost surely, 2^{400611221475493} is an apocalyptic number.

It is an amenable number.

400611221475493 is a deficient number, since it is larger than the sum of its proper divisors (57232353959195).

400611221475493 is a wasteful number, since it uses less digits than its factorization.

400611221475493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272432843.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 400611221475493 in words is "four hundred trillion, six hundred eleven billion, two hundred twenty-one million, four hundred seventy-five thousand, four hundred ninety-three".