215431546045 has 16 divisors (see below), whose sum is σ = 276282975168. Its totient is φ = 160691319040.

The previous prime is 215431546039. The next prime is 215431546049. The reversal of 215431546045 is 540645134512.

It is not a de Polignac number, because 215431546045 - 2⁹ = 215431545533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215431545989 and 215431546007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215431546049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11834311 + ... + 11852500.

It is an arithmetic number, because the mean of its divisors is an integer number (17267685948).

Almost surely, 2^215431546045 is an apocalyptic number.

It is an amenable number.

215431546045 is a deficient number, since it is larger than the sum of its proper divisors (60851429123).

215431546045 is a wasteful number, since it uses less digits than its factorization.

215431546045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23686940.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 215431546045 in words is "two hundred fifteen billion, four hundred thirty-one million, five hundred forty-six thousand, forty-five".