400042264545 has 96 divisors (see below), whose sum is σ = 874221154560. Its totient is φ = 164383211520.

The previous prime is 400042264499. The next prime is 400042264547. The reversal of 400042264545 is 545462240004.

400042264545 is a `hidden beast` number, since 4 + 0 + 0 + 0 + 4 + 2 + 2 + 645 + 4 + 5 = 666.

It is not a de Polignac number, because 400042264545 - 2⁸ = 400042264289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400042264547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 340224 + ... + 956993.

It is an arithmetic number, because the mean of its divisors is an integer number (9106470360).

Almost surely, 2^400042264545 is an apocalyptic number.

400042264545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

400042264545 is an abundant number, since it is smaller than the sum of its proper divisors (474178890015).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400042264545 is a wasteful number, since it uses less digits than its factorization.

400042264545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297335 (or 1297332 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 400042264545 in words is "four hundred billion, forty-two million, two hundred sixty-four thousand, five hundred forty-five".