49285669661 has 4 divisors (see below), whose sum is σ = 49286247552. Its totient is φ = 49285091772.

The previous prime is 49285669637. The next prime is 49285669687. The reversal of 49285669661 is 16696658294.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 49285669661 - 2³⁴ = 32105800477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49285669594 and 49285669603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49285660661) 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, 132941 + ... + 340946.

It is an arithmetic number, because the mean of its divisors is an integer number (12321561888).

Almost surely, 2^49285669661 is an apocalyptic number.

It is an amenable number.

49285669661 is a deficient number, since it is larger than the sum of its proper divisors (577891).

49285669661 is a wasteful number, since it uses less digits than its factorization.

49285669661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577890.

The product of its digits is 33592320, while the sum is 62.

The spelling of 49285669661 in words is "forty-nine billion, two hundred eighty-five million, six hundred sixty-nine thousand, six hundred sixty-one".