69040024909 has 4 divisors (see below), whose sum is σ = 69401491200. Its totient is φ = 68678558620.

The previous prime is 69040024897. The next prime is 69040024931. The reversal of 69040024909 is 90942004096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69040024909 - 2²³ = 69031636301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69040024939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180732859 + ... + 180733240.

It is an arithmetic number, because the mean of its divisors is an integer number (17350372800).

Almost surely, 2^69040024909 is an apocalyptic number.

It is an amenable number.

69040024909 is a deficient number, since it is larger than the sum of its proper divisors (361466291).

69040024909 is a wasteful number, since it uses less digits than its factorization.

69040024909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361466290.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 69040024909 in words is "sixty-nine billion, forty million, twenty-four thousand, nine hundred nine".