83123625878053 has 4 divisors (see below), whose sum is σ = 83140273915468. Its totient is φ = 83106977840640.

The previous prime is 83123625878039. The next prime is 83123625878063. The reversal of 83123625878053 is 35087852632138.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12947201561284 + 70176424316769 = 3598222^2 + 8377137^2 .

It is a cyclic number.

It is not a de Polignac number, because 83123625878053 - 2⁵ = 83123625878021 is a prime.

It is a super-2 number, since 2×83123625878053² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83123625877982 and 83123625878000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83123625878063) 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, 8324011218 + ... + 8324021203.

It is an arithmetic number, because the mean of its divisors is an integer number (20785068478867).

Almost surely, 2^{83123625878053} is an apocalyptic number.

It is an amenable number.

83123625878053 is a deficient number, since it is larger than the sum of its proper divisors (16648037415).

83123625878053 is a wasteful number, since it uses less digits than its factorization.

83123625878053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16648037414.

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 83123625878053 in words is "eighty-three trillion, one hundred twenty-three billion, six hundred twenty-five million, eight hundred seventy-eight thousand, fifty-three".