629613518820 has 144 divisors (see below), whose sum is σ = 2082500425152. Its totient is φ = 140892510720.

The previous prime is 629613518813. The next prime is 629613518857. The reversal of 629613518820 is 28815316926.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2710827 + ... + 2933906.

It is an arithmetic number, because the mean of its divisors is an integer number (14461808508).

Almost surely, 2^629613518820 is an apocalyptic number.

629613518820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

629613518820 is an abundant number, since it is smaller than the sum of its proper divisors (1452886906332).

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

629613518820 is a wasteful number, since it uses less digits than its factorization.

629613518820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644782 (or 5644767 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 629613518820 in words is "six hundred twenty-nine billion, six hundred thirteen million, five hundred eighteen thousand, eight hundred twenty".