646311030454 has 8 divisors (see below), whose sum is σ = 971654959080. Its totient is φ = 322426044096.

The previous prime is 646311030451. The next prime is 646311030473. The reversal of 646311030454 is 454030113646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×646311030454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646311030451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364734459 + ... + 364736230.

It is an arithmetic number, because the mean of its divisors is an integer number (121456869885).

Almost surely, 2^646311030454 is an apocalyptic number.

646311030454 is a deficient number, since it is larger than the sum of its proper divisors (325343928626).

646311030454 is a wasteful number, since it uses less digits than its factorization.

646311030454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729471134.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 646311030454 in words is "six hundred forty-six billion, three hundred eleven million, thirty thousand, four hundred fifty-four".