213635790280 has 32 divisors (see below), whose sum is σ = 524378759040. Its totient is φ = 77685741760.

The previous prime is 213635790257. The next prime is 213635790287. The reversal of 213635790280 is 82097536312.

It is a self number, because there is not a number n which added to its sum of digits gives 213635790280.

It is not an unprimeable number, because it can be changed into a prime (213635790287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242767504 + ... + 242768383.

It is an arithmetic number, because the mean of its divisors is an integer number (16386836220).

Almost surely, 2^213635790280 is an apocalyptic number.

213635790280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213635790280 is an abundant number, since it is smaller than the sum of its proper divisors (310742968760).

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

213635790280 is a wasteful number, since it uses less digits than its factorization.

213635790280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485535909 (or 485535905 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 213635790280 in words is "two hundred thirteen billion, six hundred thirty-five million, seven hundred ninety thousand, two hundred eighty".