215313012049 has 16 divisors (see below), whose sum is σ = 233484806016. Its totient is φ = 197803756800.

The previous prime is 215313012017. The next prime is 215313012053. The reversal of 215313012049 is 940210313512.

It is a cyclic number.

It is not a de Polignac number, because 215313012049 - 2⁵ = 215313012017 is a prime.

It is a super-2 number, since 2×215313012049² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215313012049.

It is not an unprimeable number, because it can be changed into a prime (215313012059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656637 + ... + 928330.

It is an arithmetic number, because the mean of its divisors is an integer number (14592800376).

Almost surely, 2^215313012049 is an apocalyptic number.

It is an amenable number.

215313012049 is a deficient number, since it is larger than the sum of its proper divisors (18171793967).

215313012049 is a wasteful number, since it uses less digits than its factorization.

215313012049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585176.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 215313012049 in words is "two hundred fifteen billion, three hundred thirteen million, twelve thousand, forty-nine".