634362770264420 has 192 divisors, whose sum is σ = 1444666212864000. Its totient is φ = 233432037457920.

The previous prime is 634362770264411. The next prime is 634362770264423. The reversal of 634362770264420 is 24462077263436.

It is a super-2 number, since 2×634362770264420² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (634362770264423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 335661281 + ... + 337545879.

It is an arithmetic number, because the mean of its divisors is an integer number (7524303192000).

Almost surely, 2^{634362770264420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634362770264420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722333106432000).

634362770264420 is an abundant number, since it is smaller than the sum of its proper divisors (810303442599580).

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

634362770264420 is a wasteful number, since it uses less digits than its factorization.

634362770264420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884958 (or 1884956 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 56.

The spelling of 634362770264420 in words is "six hundred thirty-four trillion, three hundred sixty-two billion, seven hundred seventy million, two hundred sixty-four thousand, four hundred twenty".