979785353231 has 32 divisors (see below), whose sum is σ = 1060345883520. Its totient is φ = 901953331200.

The previous prime is 979785353213. The next prime is 979785353237. The reversal of 979785353231 is 132353587979.

It is a cyclic number.

It is not a de Polignac number, because 979785353231 - 2⁶ = 979785353167 is a prime.

It is a super-2 number, since 2×979785353231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979785353237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199181390 + ... + 199186308.

It is an arithmetic number, because the mean of its divisors is an integer number (33135808860).

Almost surely, 2^979785353231 is an apocalyptic number.

979785353231 is a deficient number, since it is larger than the sum of its proper divisors (80560530289).

979785353231 is a wasteful number, since it uses less digits than its factorization.

979785353231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6035.

The product of its digits is 42865200, while the sum is 62.

The spelling of 979785353231 in words is "nine hundred seventy-nine billion, seven hundred eighty-five million, three hundred fifty-three thousand, two hundred thirty-one".