212669479800 has 384 divisors, whose sum is σ = 800648755200. Its totient is φ = 51653376000.

The previous prime is 212669479777. The next prime is 212669479807. The reversal of 212669479800 is 8974966212.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212669479807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2808435 + ... + 2883165.

It is an arithmetic number, because the mean of its divisors is an integer number (2085022800).

Almost surely, 2^212669479800 is an apocalyptic number.

212669479800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212669479800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400324377600).

212669479800 is an abundant number, since it is smaller than the sum of its proper divisors (587979275400).

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

212669479800 is a wasteful number, since it uses less digits than its factorization.

212669479800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74804 (or 74789 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 212669479800 in words is "two hundred twelve billion, six hundred sixty-nine million, four hundred seventy-nine thousand, eight hundred".