6429569900 has 72 divisors (see below), whose sum is σ = 15231462624. Its totient is φ = 2341440000.

The previous prime is 6429569893. The next prime is 6429569921. The reversal of 6429569900 is 99659246.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61025 + ... + 128775.

It is an arithmetic number, because the mean of its divisors is an integer number (211548092).

Almost surely, 2^6429569900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6429569900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7615731312).

6429569900 is an abundant number, since it is smaller than the sum of its proper divisors (8801892724).

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

6429569900 is a wasteful number, since it uses less digits than its factorization.

6429569900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67851 (or 67844 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 6429569900 is about 80184.5988952991. The cubic root of 6429569900 is about 1859.4905434025.

The spelling of 6429569900 in words is "six billion, four hundred twenty-nine million, five hundred sixty-nine thousand, nine hundred".