633642000998 has 32 divisors (see below), whose sum is σ = 960640926336. Its totient is φ = 313449591168.

The previous prime is 633642000989. The next prime is 633642001067. The reversal of 633642000998 is 899000246336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74305811 + ... + 74314337.

It is an arithmetic number, because the mean of its divisors is an integer number (30020028948).

Almost surely, 2^633642000998 is an apocalyptic number.

633642000998 is a deficient number, since it is larger than the sum of its proper divisors (326998925338).

633642000998 is a wasteful number, since it uses less digits than its factorization.

633642000998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9728.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 633642000998 in words is "six hundred thirty-three billion, six hundred forty-two million, nine hundred ninety-eight", and thus it is an aban number.