215672400429 has 16 divisors (see below), whose sum is σ = 287921969664. Its totient is φ = 143602311600.

The previous prime is 215672400353. The next prime is 215672400451. The reversal of 215672400429 is 924004276512.

It is a happy number.

215672400429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215672400429 - 2⁸ = 215672400173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215672400499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11010214 + ... + 11029784.

It is an arithmetic number, because the mean of its divisors is an integer number (17995123104).

Almost surely, 2^215672400429 is an apocalyptic number.

It is an amenable number.

215672400429 is a deficient number, since it is larger than the sum of its proper divisors (72249569235).

215672400429 is a wasteful number, since it uses less digits than its factorization.

215672400429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23968.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 215672400429 in words is "two hundred fifteen billion, six hundred seventy-two million, four hundred thousand, four hundred twenty-nine".