83250139445 has 16 divisors (see below), whose sum is σ = 109000487808. Its totient is φ = 60535285440.

The previous prime is 83250139433. The next prime is 83250139447. The reversal of 83250139445 is 54493105238.

It is not a de Polignac number, because 83250139445 - 2⁴ = 83250139429 is a prime.

It is a super-2 number, since 2×83250139445² (a number of 23 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 = 83250139396 and 83250139405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83250139447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206672 + ... + 457398.

It is an arithmetic number, because the mean of its divisors is an integer number (6812530488).

Almost surely, 2^83250139445 is an apocalyptic number.

It is an amenable number.

83250139445 is a deficient number, since it is larger than the sum of its proper divisors (25750348363).

83250139445 is a wasteful number, since it uses less digits than its factorization.

83250139445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256780.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 83250139445 in words is "eighty-three billion, two hundred fifty million, one hundred thirty-nine thousand, four hundred forty-five".