85340531913 has 64 divisors (see below), whose sum is σ = 148625326080. Its totient is φ = 42269340672.

The previous prime is 85340531851. The next prime is 85340531921. The reversal of 85340531913 is 31913504358.

It is not a de Polignac number, because 85340531913 - 2⁶ = 85340531849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85340531513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2016456 + ... + 2058342.

It is an arithmetic number, because the mean of its divisors is an integer number (2322270720).

Almost surely, 2^85340531913 is an apocalyptic number.

It is an amenable number.

85340531913 is a deficient number, since it is larger than the sum of its proper divisors (63284794167).

85340531913 is a wasteful number, since it uses less digits than its factorization.

85340531913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42366.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 85340531913 in words is "eighty-five billion, three hundred forty million, five hundred thirty-one thousand, nine hundred thirteen".