645909241462 has 16 divisors (see below), whose sum is σ = 996141736512. Its totient is φ = 313881160320.

The previous prime is 645909241459. The next prime is 645909241501. The reversal of 645909241462 is 264142909546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4723203 + ... + 4858030.

It is an arithmetic number, because the mean of its divisors is an integer number (62258858532).

Almost surely, 2^645909241462 is an apocalyptic number.

645909241462 is a deficient number, since it is larger than the sum of its proper divisors (350232495050).

645909241462 is a wasteful number, since it uses less digits than its factorization.

645909241462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582183.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 645909241462 in words is "six hundred forty-five billion, nine hundred nine million, two hundred forty-one thousand, four hundred sixty-two".