400035420063 has 16 divisors (see below), whose sum is σ = 602689900800. Its totient is φ = 262170104760.

The previous prime is 400035420023. The next prime is 400035420101. The reversal of 400035420063 is 360024530004.

400035420063 is a `hidden beast` number, since 400 + 0 + 3 + 54 + 200 + 6 + 3 = 666.

It is not a de Polignac number, because 400035420063 - 2⁹ = 400035419551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400035420023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125558803 + ... + 125561988.

It is an arithmetic number, because the mean of its divisors is an integer number (37668118800).

Almost surely, 2^400035420063 is an apocalyptic number.

400035420063 is a deficient number, since it is larger than the sum of its proper divisors (202654480737).

400035420063 is a wasteful number, since it uses less digits than its factorization.

400035420063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251120859 (or 251120853 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 400035420063 its reverse (360024530004), we get a palindrome (760059950067).

The spelling of 400035420063 in words is "four hundred billion, thirty-five million, four hundred twenty thousand, sixty-three".