400511540453 has 4 divisors (see below), whose sum is σ = 409825762368. Its totient is φ = 391197318540.

The previous prime is 400511540449. The next prime is 400511540467. The reversal of 400511540453 is 354045115004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400511540453 - 2² = 400511540449 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 (400511540423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4657110893 + ... + 4657110978.

It is an arithmetic number, because the mean of its divisors is an integer number (102456440592).

Almost surely, 2^400511540453 is an apocalyptic number.

400511540453 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

400511540453 is a deficient number, since it is larger than the sum of its proper divisors (9314221915).

400511540453 is an equidigital number, since it uses as much as digits as its factorization.

400511540453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9314221914.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 400511540453 its reverse (354045115004), we get a palindrome (754556655457).

The spelling of 400511540453 in words is "four hundred billion, five hundred eleven million, five hundred forty thousand, four hundred fifty-three".