84979967835 has 128 divisors (see below), whose sum is σ = 162432811008. Its totient is φ = 37122624000.

The previous prime is 84979967833. The next prime is 84979967867. The reversal of 84979967835 is 53876997948.

It is not a de Polignac number, because 84979967835 - 2¹ = 84979967833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84979967833) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 128562405 + ... + 128563065.

It is an arithmetic number, because the mean of its divisors is an integer number (1269006336).

Almost surely, 2^84979967835 is an apocalyptic number.

84979967835 is a deficient number, since it is larger than the sum of its proper divisors (77452843173).

84979967835 is a wasteful number, since it uses less digits than its factorization.

84979967835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145.

The product of its digits is 823011840, while the sum is 75.

The spelling of 84979967835 in words is "eighty-four billion, nine hundred seventy-nine million, nine hundred sixty-seven thousand, eight hundred thirty-five".