69404311877 has 8 divisors (see below), whose sum is σ = 73520963352. Its totient is φ = 65291443200.

The previous prime is 69404311853. The next prime is 69404311883. The reversal of 69404311877 is 77811340496.

It can be written as a sum of positive squares in 4 ways, for example, as 43691868676 + 25712443201 = 209026^2 + 160351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69404311877 - 2⁸ = 69404311621 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 (69404311577) 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 7 ways as a sum of consecutive naturals, for example, 907874 + ... + 981347.

It is an arithmetic number, because the mean of its divisors is an integer number (9190120419).

Almost surely, 2^69404311877 is an apocalyptic number.

It is an amenable number.

69404311877 is a deficient number, since it is larger than the sum of its proper divisors (4116651475).

69404311877 is a wasteful number, since it uses less digits than its factorization.

69404311877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891399.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 69404311877 in words is "sixty-nine billion, four hundred four million, three hundred eleven thousand, eight hundred seventy-seven".