653400388443 has 32 divisors (see below), whose sum is σ = 992261394432. Its totient is φ = 378576941600.

The previous prime is 653400388423. The next prime is 653400388561. The reversal of 653400388443 is 344883004356.

It is not a de Polignac number, because 653400388443 - 2⁵ = 653400388411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 653400388392 and 653400388401.

It is not an unprimeable number, because it can be changed into a prime (653400388423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1168828 + ... + 1634918.

It is an arithmetic number, because the mean of its divisors is an integer number (31008168576).

Almost surely, 2^653400388443 is an apocalyptic number.

653400388443 is a deficient number, since it is larger than the sum of its proper divisors (338861005989).

653400388443 is a wasteful number, since it uses less digits than its factorization.

653400388443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467975.

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 653400388443 in words is "six hundred fifty-three billion, four hundred million, three hundred eighty-eight thousand, four hundred forty-three".