400253035545 has 48 divisors (see below), whose sum is σ = 769669992000. Its totient is φ = 190772876160.

The previous prime is 400253035537. The next prime is 400253035561. The reversal of 400253035545 is 545530352004.

400253035545 is a `hidden beast` number, since 40 + 0 + 2 + 530 + 35 + 54 + 5 = 666.

It is not a de Polignac number, because 400253035545 - 2³ = 400253035537 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 6823270 + ... + 6881679.

It is an arithmetic number, because the mean of its divisors is an integer number (16034791500).

Almost surely, 2^400253035545 is an apocalyptic number.

400253035545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

400253035545 is a deficient number, since it is larger than the sum of its proper divisors (369416956455).

400253035545 is a wasteful number, since it uses less digits than its factorization.

400253035545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13705030 (or 13705027 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

Adding to 400253035545 its reverse (545530352004), we get a palindrome (945783387549).

The spelling of 400253035545 in words is "four hundred billion, two hundred fifty-three million, thirty-five thousand, five hundred forty-five".