6454401646 has 64 divisors (see below), whose sum is σ = 12602304000. Its totient is φ = 2405531520.

The previous prime is 6454401641. The next prime is 6454401647. The reversal of 6454401646 is 6461044546.

It is a junction number, because it is equal to n+sod(n) for n = 6454401599 and 6454401608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454401641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480165 + ... + 493423.

It is an arithmetic number, because the mean of its divisors is an integer number (196911000).

Almost surely, 2^6454401646 is an apocalyptic number.

6454401646 is a deficient number, since it is larger than the sum of its proper divisors (6147902354).

6454401646 is a wasteful number, since it uses less digits than its factorization.

6454401646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13417.

The product of its (nonzero) digits is 276480, while the sum is 40.

The square root of 6454401646 is about 80339.2907984630. The cubic root of 6454401646 is about 1861.8813243913.

The spelling of 6454401646 in words is "six billion, four hundred fifty-four million, four hundred one thousand, six hundred forty-six".