83902779133 has 8 divisors (see below), whose sum is σ = 84310824416. Its totient is φ = 83494832400.

The previous prime is 83902779119. The next prime is 83902779139. The reversal of 83902779133 is 33197720938.

It is a happy number.

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 83902779133 - 2¹⁷ = 83902648061 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 (83902779139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2141863 + ... + 2180683.

It is an arithmetic number, because the mean of its divisors is an integer number (10538853052).

Almost surely, 2^83902779133 is an apocalyptic number.

It is an amenable number.

83902779133 is a deficient number, since it is larger than the sum of its proper divisors (408045283).

83902779133 is a wasteful number, since it uses less digits than its factorization.

83902779133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49275.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 83902779133 in words is "eighty-three billion, nine hundred two million, seven hundred seventy-nine thousand, one hundred thirty-three".