629729850870 has 128 divisors (see below), whose sum is σ = 1684923379200. Its totient is φ = 167364607104.

The previous prime is 629729850839. The next prime is 629729850889. The reversal of 629729850870 is 78058927926.

629729850870 is a `hidden beast` number, since 6 + 297 + 298 + 50 + 8 + 7 + 0 = 666.

It is a super-3 number, since 3×629729850870³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 629729850798 and 629729850807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107772169 + ... + 107778011.

It is an arithmetic number, because the mean of its divisors is an integer number (13163463900).

Almost surely, 2^629729850870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629729850870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842461689600).

629729850870 is an abundant number, since it is smaller than the sum of its proper divisors (1055193528330).

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

629729850870 is a wasteful number, since it uses less digits than its factorization.

629729850870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131 (or 7125 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 629729850870 in words is "six hundred twenty-nine billion, seven hundred twenty-nine million, eight hundred fifty thousand, eight hundred seventy".