215073772404 has 24 divisors (see below), whose sum is σ = 501979907520. Its totient is φ = 71671099584.

The previous prime is 215073772387. The next prime is 215073772411. The reversal of 215073772404 is 404277370512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2475249 + ... + 2560664.

It is an arithmetic number, because the mean of its divisors is an integer number (20915829480).

Almost surely, 2^215073772404 is an apocalyptic number.

It is an amenable number.

215073772404 is an abundant number, since it is smaller than the sum of its proper divisors (286906135116).

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

215073772404 is a wasteful number, since it uses less digits than its factorization.

215073772404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039479 (or 5039477 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 42.

The spelling of 215073772404 in words is "two hundred fifteen billion, seventy-three million, seven hundred seventy-two thousand, four hundred four".