85867657458 has 48 divisors (see below), whose sum is σ = 199016370144. Its totient is φ = 24489879040.

The previous prime is 85867657457. The next prime is 85867657483. The reversal of 85867657458 is 85475676858.

It is a junction number, because it is equal to n+sod(n) for n = 85867657392 and 85867657401.

It is not an unprimeable number, because it can be changed into a prime (85867657457) 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, 2231835 + ... + 2269982.

It is an arithmetic number, because the mean of its divisors is an integer number (4146174378).

Almost surely, 2^85867657458 is an apocalyptic number.

85867657458 is an abundant number, since it is smaller than the sum of its proper divisors (113148712686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85867657458 is a wasteful number, since it uses less digits than its factorization.

85867657458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501867 (or 4501850 counting only the distinct ones).

The product of its digits is 451584000, while the sum is 69.

The spelling of 85867657458 in words is "eighty-five billion, eight hundred sixty-seven million, six hundred fifty-seven thousand, four hundred fifty-eight".