2085648139679 has 16 divisors (see below), whose sum is σ = 2399251210272. Its totient is φ = 1795930687488.

The previous prime is 2085648139667. The next prime is 2085648139691. The reversal of 2085648139679 is 9769318465802.

It is an interprime number because it is at equal distance from previous prime (2085648139667) and next prime (2085648139691).

It is a cyclic number.

It is not a de Polignac number, because 2085648139679 - 2²⁸ = 2085379704223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085648139979) 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, 41733089 + ... + 41783034.

It is an arithmetic number, because the mean of its divisors is an integer number (149953200642).

It is a 1-persistent number, because it is pandigital, but 2⋅2085648139679 = 4171296279358 is not.

Almost surely, 2^{2085648139679} is an apocalyptic number.

2085648139679 is a deficient number, since it is larger than the sum of its proper divisors (313603070593).

2085648139679 is a wasteful number, since it uses less digits than its factorization.

2085648139679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83516266.

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 2085648139679 in words is "two trillion, eighty-five billion, six hundred forty-eight million, one hundred thirty-nine thousand, six hundred seventy-nine".