815229312049 has 16 divisors (see below), whose sum is σ = 838560885120. Its totient is φ = 792226314880.

The previous prime is 815229312019. The next prime is 815229312061. The reversal of 815229312049 is 940213922518.

It is a cyclic number.

It is not a de Polignac number, because 815229312049 - 2¹³ = 815229303857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (815229312019) 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, 2323242 + ... + 2651020.

It is an arithmetic number, because the mean of its divisors is an integer number (52410055320).

Almost surely, 2^815229312049 is an apocalyptic number.

It is an amenable number.

815229312049 is a deficient number, since it is larger than the sum of its proper divisors (23331573071).

815229312049 is a wasteful number, since it uses less digits than its factorization.

815229312049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328280.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 815229312049 in words is "eight hundred fifteen billion, two hundred twenty-nine million, three hundred twelve thousand, forty-nine".