83779252575 has 24 divisors (see below), whose sum is σ = 138650823696. Its totient is φ = 44638464000.

The previous prime is 83779252553. The next prime is 83779252597. The reversal of 83779252575 is 57525297738.

It is an interprime number because it is at equal distance from previous prime (83779252553) and next prime (83779252597).

It is not a de Polignac number, because 83779252575 - 2¹⁰ = 83779251551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470466 + ... + 623615.

It is an arithmetic number, because the mean of its divisors is an integer number (5777117654).

Almost surely, 2^83779252575 is an apocalyptic number.

83779252575 is a deficient number, since it is larger than the sum of its proper divisors (54871571121).

83779252575 is a wasteful number, since it uses less digits than its factorization.

83779252575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095115 (or 1095110 counting only the distinct ones).

The product of its digits is 37044000, while the sum is 60.

The spelling of 83779252575 in words is "eighty-three billion, seven hundred seventy-nine million, two hundred fifty-two thousand, five hundred seventy-five".