215043078492 has 72 divisors (see below), whose sum is σ = 593059888512. Its totient is φ = 65157722400.

The previous prime is 215043078457. The next prime is 215043078517. The reversal of 215043078492 is 294870340512.

215043078492 is a `hidden beast` number, since 2 + 1 + 50 + 43 + 0 + 78 + 492 = 666.

215043078492 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4757623 + ... + 4802609.

It is an arithmetic number, because the mean of its divisors is an integer number (8236942896).

Almost surely, 2^215043078492 is an apocalyptic number.

215043078492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215043078492 is an abundant number, since it is smaller than the sum of its proper divisors (378016810020).

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

215043078492 is a wasteful number, since it uses less digits than its factorization.

215043078492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57079 (or 57074 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 215043078492 in words is "two hundred fifteen billion, forty-three million, seventy-eight thousand, four hundred ninety-two".