85461623091 has 24 divisors (see below), whose sum is σ = 133137959136. Its totient is φ = 52513574400.

The previous prime is 85461623077. The next prime is 85461623131. The reversal of 85461623091 is 19032616458.

85461623091 is a `hidden beast` number, since 8 + 5 + 4 + 616 + 23 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 85461623091 - 2³⁰ = 84387881267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85461622091) 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, 463935 + ... + 621416.

It is an arithmetic number, because the mean of its divisors is an integer number (5547414964).

Almost surely, 2^85461623091 is an apocalyptic number.

85461623091 is a deficient number, since it is larger than the sum of its proper divisors (47676336045).

85461623091 is a wasteful number, since it uses less digits than its factorization.

85461623091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086043 (or 1086040 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 85461623091 in words is "eighty-five billion, four hundred sixty-one million, six hundred twenty-three thousand, ninety-one".