629974479926 has 64 divisors (see below), whose sum is σ = 1068856922880. Its totient is φ = 276012696960.

The previous prime is 629974479923. The next prime is 629974479931.

629974479926 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629974479923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29597600 + ... + 29618876.

It is an arithmetic number, because the mean of its divisors is an integer number (16700889420).

Almost surely, 2^629974479926 is an apocalyptic number.

629974479926 is a deficient number, since it is larger than the sum of its proper divisors (438882442954).

629974479926 is a wasteful number, since it uses less digits than its factorization.

629974479926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21789.

The product of its digits is 740710656, while the sum is 74.

The spelling of 629974479926 in words is "six hundred twenty-nine billion, nine hundred seventy-four million, four hundred seventy-nine thousand, nine hundred twenty-six".