629885084409 has 45 divisors (see below), whose sum is σ = 1061606486213. Its totient is φ = 359867667096.

The previous prime is 629885084401. The next prime is 629885084441. The reversal of 629885084409 is 904480588926.

The square root of 629885084409 is 793653.

It is a perfect power (a square), and thus also a powerful number.

629885084409 is a `hidden beast` number, since 6 + 2 + 9 + 88 + 508 + 4 + 40 + 9 = 666.

It is not a de Polignac number, because 629885084409 - 2³ = 629885084401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (629885084401) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 116664292 + ... + 116669690.

Almost surely, 2^629885084409 is an apocalyptic number.

629885084409 is the 793653-rd square number.

629885084409 is the 396827-th centered octagonal number.

It is an amenable number.

629885084409 is a deficient number, since it is larger than the sum of its proper divisors (431721401804).

629885084409 is an frugal number, since it uses more digits than its factorization.

629885084409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832 (or 5409 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 629885084409 in words is "six hundred twenty-nine billion, eight hundred eighty-five million, eighty-four thousand, four hundred nine".