85836705615387 has 24 divisors (see below), whose sum is σ = 125483176728000. Its totient is φ = 56533661592048.

The previous prime is 85836705615361. The next prime is 85836705615407. The reversal of 85836705615387 is 78351650763858.

85836705615387 is a `hidden beast` number, since 8 + 5 + 8 + 3 + 6 + 7 + 0 + 561 + 53 + 8 + 7 = 666.

It is not a de Polignac number, because 85836705615387 - 2¹¹ = 85836705613339 is a prime.

It is a super-2 number, since 2×85836705615387² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85836705611387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30239064 + ... + 32955642.

It is an arithmetic number, because the mean of its divisors is an integer number (5228465697000).

Almost surely, 2^{85836705615387} is an apocalyptic number.

85836705615387 is a deficient number, since it is larger than the sum of its proper divisors (39646471112613).

85836705615387 is a wasteful number, since it uses less digits than its factorization.

85836705615387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758967 (or 2758964 counting only the distinct ones).

The product of its (nonzero) digits is 1016064000, while the sum is 72.

The spelling of 85836705615387 in words is "eighty-five trillion, eight hundred thirty-six billion, seven hundred five million, six hundred fifteen thousand, three hundred eighty-seven".