629429511621 has 16 divisors (see below), whose sum is σ = 851561239680. Its totient is φ = 413469884160.

The previous prime is 629429511559. The next prime is 629429511671. The reversal of 629429511621 is 126115924926.

It is not a de Polignac number, because 629429511621 - 2²² = 629425317317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629429511671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168056 + ... + 1619633.

It is an arithmetic number, because the mean of its divisors is an integer number (53222577480).

Almost surely, 2^629429511621 is an apocalyptic number.

It is an amenable number.

629429511621 is a deficient number, since it is larger than the sum of its proper divisors (222131728059).

629429511621 is a wasteful number, since it uses less digits than its factorization.

629429511621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788796.

The product of its digits is 466560, while the sum is 48.

The spelling of 629429511621 in words is "six hundred twenty-nine billion, four hundred twenty-nine million, five hundred eleven thousand, six hundred twenty-one".