83156826773 has 4 divisors (see below), whose sum is σ = 85839305088. Its totient is φ = 80474348460.

The previous prime is 83156826763. The next prime is 83156826791. The reversal of 83156826773 is 37762865138.

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 83156826773 - 2¹⁸ = 83156564629 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 (83156826733) 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, 1341239111 + ... + 1341239172.

It is an arithmetic number, because the mean of its divisors is an integer number (21459826272).

Almost surely, 2^83156826773 is an apocalyptic number.

It is an amenable number.

83156826773 is a deficient number, since it is larger than the sum of its proper divisors (2682478315).

83156826773 is a wasteful number, since it uses less digits than its factorization.

83156826773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682478314.

The product of its digits is 10160640, while the sum is 56.

The spelling of 83156826773 in words is "eighty-three billion, one hundred fifty-six million, eight hundred twenty-six thousand, seven hundred seventy-three".