629507881136 has 80 divisors (see below), whose sum is σ = 1323513206400. Its totient is φ = 289117776384.

The previous prime is 629507881127. The next prime is 629507881151. The reversal of 629507881136 is 631188705926.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068935 + ... + 1549721.

It is an arithmetic number, because the mean of its divisors is an integer number (16543915080).

Almost surely, 2^629507881136 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 629507881136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661756603200).

629507881136 is an abundant number, since it is smaller than the sum of its proper divisors (694005325264).

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

629507881136 is a wasteful number, since it uses less digits than its factorization.

629507881136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480946 (or 480940 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 629507881136 in words is "six hundred twenty-nine billion, five hundred seven million, eight hundred eighty-one thousand, one hundred thirty-six".