85541936641 has 48 divisors (see below), whose sum is σ = 104482076160. Its totient is φ = 69742632960.

The previous prime is 85541936587. The next prime is 85541936653. The reversal of 85541936641 is 14663914558.

It is a happy number.

It is not a de Polignac number, because 85541936641 - 2¹¹ = 85541934593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85541936681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78262891 + ... + 78263983.

It is an arithmetic number, because the mean of its divisors is an integer number (2176709920).

Almost surely, 2^85541936641 is an apocalyptic number.

It is an amenable number.

85541936641 is a deficient number, since it is larger than the sum of its proper divisors (18940139519).

85541936641 is a wasteful number, since it uses less digits than its factorization.

85541936641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974 (or 1967 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 52.

The spelling of 85541936641 in words is "eighty-five billion, five hundred forty-one million, nine hundred thirty-six thousand, six hundred forty-one".