400653351010543 has 4 divisors (see below), whose sum is σ = 414468983804040. Its totient is φ = 386837718217048.

The previous prime is 400653351010499. The next prime is 400653351010567. The reversal of 400653351010543 is 345010153356004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400653351010543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400653351010496 and 400653351010505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400653351010043) 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, 6907816396705 + ... + 6907816396762.

It is an arithmetic number, because the mean of its divisors is an integer number (103617245951010).

Almost surely, 2^{400653351010543} is an apocalyptic number.

400653351010543 is a deficient number, since it is larger than the sum of its proper divisors (13815632793497).

400653351010543 is a wasteful number, since it uses less digits than its factorization.

400653351010543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13815632793496.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 400653351010543 in words is "four hundred trillion, six hundred fifty-three billion, three hundred fifty-one million, ten thousand, five hundred forty-three".