83775106154 has 4 divisors (see below), whose sum is σ = 125662659234. Its totient is φ = 41887553076.

The previous prime is 83775106139. The next prime is 83775106189. The reversal of 83775106154 is 45160157738.

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

It can be written as a sum of positive squares in only one way, i.e., 83772619225 + 2486929 = 289435^2 + 1577^2 .

It is a super-2 number, since 2×83775106154² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83775106099 and 83775106108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20943776537 + ... + 20943776540.

Almost surely, 2^83775106154 is an apocalyptic number.

83775106154 is a deficient number, since it is larger than the sum of its proper divisors (41887553080).

83775106154 is a wasteful number, since it uses less digits than its factorization.

83775106154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41887553079.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 83775106154 in words is "eighty-three billion, seven hundred seventy-five million, one hundred six thousand, one hundred fifty-four".