83172603527 has 12 divisors (see below), whose sum is σ = 90083222784. Its totient is φ = 76757166720.

The previous prime is 83172603517. The next prime is 83172603539. The reversal of 83172603527 is 72530627138.

It is not a de Polignac number, because 83172603527 - 2¹⁶ = 83172537991 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83172603517) 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, 716858 + ... + 824760.

It is an arithmetic number, because the mean of its divisors is an integer number (7506935232).

Almost surely, 2^83172603527 is an apocalyptic number.

83172603527 is a deficient number, since it is larger than the sum of its proper divisors (6910619257).

83172603527 is a wasteful number, since it uses less digits than its factorization.

83172603527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112490 (or 112477 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 83172603527 in words is "eighty-three billion, one hundred seventy-two million, six hundred three thousand, five hundred twenty-seven".