83191471925 has 12 divisors (see below), whose sum is σ = 103422623460. Its totient is φ = 66382081920.

The previous prime is 83191471921. The next prime is 83191471967. The reversal of 83191471925 is 52917419138.

It can be written as a sum of positive squares in 6 ways, for example, as 24388131889 + 58803340036 = 156167^2 + 242494^2 .

It is not a de Polignac number, because 83191471925 - 2² = 83191471921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83191471921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4267472 + ... + 4286921.

It is an arithmetic number, because the mean of its divisors is an integer number (8618551955).

Almost surely, 2^83191471925 is an apocalyptic number.

It is an amenable number.

83191471925 is a deficient number, since it is larger than the sum of its proper divisors (20231151535).

83191471925 is a wasteful number, since it uses less digits than its factorization.

83191471925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554792 (or 8554787 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The spelling of 83191471925 in words is "eighty-three billion, one hundred ninety-one million, four hundred seventy-one thousand, nine hundred twenty-five".