645414263304 has 16 divisors (see below), whose sum is σ = 1613535658320. Its totient is φ = 215138087760.

The previous prime is 645414263297. The next prime is 645414263311. The reversal of 645414263304 is 403362414546.

It is an interprime number because it is at equal distance from previous prime (645414263297) and next prime (645414263311).

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, 13446130462 + ... + 13446130509.

It is an arithmetic number, because the mean of its divisors is an integer number (100845978645).

Almost surely, 2^645414263304 is an apocalyptic number.

It is an amenable number.

645414263304 is an abundant number, since it is smaller than the sum of its proper divisors (968121395016).

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

645414263304 is a wasteful number, since it uses less digits than its factorization.

645414263304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26892260980 (or 26892260976 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 645414263304 in words is "six hundred forty-five billion, four hundred fourteen million, two hundred sixty-three thousand, three hundred four".