215115027743 has 24 divisors (see below), whose sum is σ = 273012085584. Its totient is φ = 167605200000.

The previous prime is 215115027731. The next prime is 215115027749. The reversal of 215115027743 is 347720511512.

It is not a de Polignac number, because 215115027743 - 2⁸ = 215115027487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215115027697 and 215115027706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215115027749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9548993 + ... + 9571493.

It is an arithmetic number, because the mean of its divisors is an integer number (11375503566).

Almost surely, 2^215115027743 is an apocalyptic number.

215115027743 is a deficient number, since it is larger than the sum of its proper divisors (57897057841).

215115027743 is a wasteful number, since it uses less digits than its factorization.

215115027743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40263 (or 40256 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 215115027743 in words is "two hundred fifteen billion, one hundred fifteen million, twenty-seven thousand, seven hundred forty-three".