69012572249 has 4 divisors (see below), whose sum is σ = 69724042164. Its totient is φ = 68301102336.

The previous prime is 69012572231. The next prime is 69012572257. The reversal of 69012572249 is 94227521096.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56684467225 + 12328105024 = 238085^2 + 111032^2 .

It is a cyclic number.

It is not a de Polignac number, because 69012572249 - 2¹⁶ = 69012506713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69012572269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355734812 + ... + 355735005.

It is an arithmetic number, because the mean of its divisors is an integer number (17431010541).

Almost surely, 2^69012572249 is an apocalyptic number.

It is an amenable number.

69012572249 is a deficient number, since it is larger than the sum of its proper divisors (711469915).

69012572249 is an equidigital number, since it uses as much as digits as its factorization.

69012572249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711469914.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 69012572249 in words is "sixty-nine billion, twelve million, five hundred seventy-two thousand, two hundred forty-nine".