83786070077 has 4 divisors (see below), whose sum is σ = 83789171040. Its totient is φ = 83782969116.

The previous prime is 83786070047. The next prime is 83786070079. The reversal of 83786070077 is 77007068738.

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 83786070077 - 2¹⁰ = 83786069053 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 (83786070079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509593 + ... + 1564110.

It is an arithmetic number, because the mean of its divisors is an integer number (20947292760).

Almost surely, 2^83786070077 is an apocalyptic number.

It is an amenable number.

83786070077 is a deficient number, since it is larger than the sum of its proper divisors (3100963).

83786070077 is a wasteful number, since it uses less digits than its factorization.

83786070077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100962.

The product of its (nonzero) digits is 2765952, while the sum is 53.

The spelling of 83786070077 in words is "eighty-three billion, seven hundred eighty-six million, seventy thousand, seventy-seven".