629815661373468 has 48 divisors (see below), whose sum is σ = 1487478924439200. Its totient is φ = 207395577202944.

The previous prime is 629815661373439. The next prime is 629815661373487. The reversal of 629815661373468 is 864373166518926.

It is a super-2 number, since 2×629815661373468² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 629815661373468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965850543 + ... + 966502406.

It is an arithmetic number, because the mean of its divisors is an integer number (30989144259150).

Almost surely, 2^{629815661373468} is an apocalyptic number.

It is an amenable number.

629815661373468 is an abundant number, since it is smaller than the sum of its proper divisors (857663263065732).

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

629815661373468 is a wasteful number, since it uses less digits than its factorization.

629815661373468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932353286 (or 1932353284 counting only the distinct ones).

The product of its digits is 1881169920, while the sum is 75.

The spelling of 629815661373468 in words is "six hundred twenty-nine trillion, eight hundred fifteen billion, six hundred sixty-one million, three hundred seventy-three thousand, four hundred sixty-eight".