6435405654 has 16 divisors (see below), whose sum is σ = 12969063360. Its totient is φ = 2128759880.

The previous prime is 6435405653. The next prime is 6435405667. The reversal of 6435405654 is 4565045346.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6435405653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4092984 + ... + 4094555.

It is an arithmetic number, because the mean of its divisors is an integer number (810566460).

Almost surely, 2^6435405654 is an apocalyptic number.

6435405654 is an abundant number, since it is smaller than the sum of its proper divisors (6533657706).

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

6435405654 is a wasteful number, since it uses less digits than its factorization.

6435405654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187675.

The product of its (nonzero) digits is 864000, while the sum is 42.

The square root of 6435405654 is about 80220.9801361215. The cubic root of 6435405654 is about 1860.0529577938.

The spelling of 6435405654 in words is "six billion, four hundred thirty-five million, four hundred five thousand, six hundred fifty-four".