69882742789477 has 12 divisors (see below), whose sum is σ = 76133535897216. Its totient is φ = 64069068081960.

The previous prime is 69882742789421. The next prime is 69882742789481. The reversal of 69882742789477 is 77498724728896.

It is a de Polignac number, because none of the positive numbers 2^k-69882742789477 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 (69882742789177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3122263083 + ... + 3122285464.

It is an arithmetic number, because the mean of its divisors is an integer number (6344461324768).

Almost surely, 2^{69882742789477} is an apocalyptic number.

It is an amenable number.

69882742789477 is a deficient number, since it is larger than the sum of its proper divisors (6250793107739).

69882742789477 is a wasteful number, since it uses less digits than its factorization.

69882742789477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244548616 (or 6244548597 counting only the distinct ones).

The product of its digits is 38236520448, while the sum is 88.

The spelling of 69882742789477 in words is "sixty-nine trillion, eight hundred eighty-two billion, seven hundred forty-two million, seven hundred eighty-nine thousand, four hundred seventy-seven".