633034747428 has 72 divisors (see below), whose sum is σ = 1569686264832. Its totient is φ = 198522302976.

The previous prime is 633034747369. The next prime is 633034747481. The reversal of 633034747428 is 824747430336.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9284550 + ... + 9352482.

Almost surely, 2^633034747428 is an apocalyptic number.

633034747428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 633034747428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784843132416).

633034747428 is an abundant number, since it is smaller than the sum of its proper divisors (936651517404).

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

633034747428 is a wasteful number, since it uses less digits than its factorization.

633034747428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70661 (or 70642 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 51.

The spelling of 633034747428 in words is "six hundred thirty-three billion, thirty-four million, seven hundred forty-seven thousand, four hundred twenty-eight".