69427764459991 has 16 divisors (see below), whose sum is σ = 82141604628480. Its totient is φ = 57423885654240.

The previous prime is 69427764459923. The next prime is 69427764460003. The reversal of 69427764459991 is 19995446772496.

It is not a de Polignac number, because 69427764459991 - 2⁹ = 69427764459479 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 (69427764489991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460938556 + ... + 461089153.

It is an arithmetic number, because the mean of its divisors is an integer number (5133850289280).

Almost surely, 2^{69427764459991} is an apocalyptic number.

69427764459991 is a deficient number, since it is larger than the sum of its proper divisors (12713840168489).

69427764459991 is a wasteful number, since it uses less digits than its factorization.

69427764459991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922028094.

The product of its digits is 7407106560, while the sum is 82.

The spelling of 69427764459991 in words is "sixty-nine trillion, four hundred twenty-seven billion, seven hundred sixty-four million, four hundred fifty-nine thousand, nine hundred ninety-one".