646264525430 has 8 divisors (see below), whose sum is σ = 1163276145792. Its totient is φ = 258505810168.

The previous prime is 646264525409. The next prime is 646264525469. The reversal of 646264525430 is 34525462646.

646264525430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32313226262 + ... + 32313226281.

It is an arithmetic number, because the mean of its divisors is an integer number (145409518224).

Almost surely, 2^646264525430 is an apocalyptic number.

646264525430 is a deficient number, since it is larger than the sum of its proper divisors (517011620362).

646264525430 is a wasteful number, since it uses less digits than its factorization.

646264525430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64626452550.

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 646264525430 in words is "six hundred forty-six billion, two hundred sixty-four million, five hundred twenty-five thousand, four hundred thirty".