645632429098 has 8 divisors (see below), whose sum is σ = 971562627360. Its totient is φ = 321778219980.

The previous prime is 645632429089. The next prime is 645632429137. The reversal of 645632429098 is 890924236546.

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

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, 518996508 + ... + 518997751.

It is an arithmetic number, because the mean of its divisors is an integer number (121445328420).

Almost surely, 2^645632429098 is an apocalyptic number.

645632429098 is a deficient number, since it is larger than the sum of its proper divisors (325930198262).

645632429098 is a wasteful number, since it uses less digits than its factorization.

645632429098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037994572.

The product of its (nonzero) digits is 22394880, while the sum is 58.

The spelling of 645632429098 in words is "six hundred forty-five billion, six hundred thirty-two million, four hundred twenty-nine thousand, ninety-eight".