85642467020 has 48 divisors (see below), whose sum is σ = 196654542336. Its totient is φ = 31070424000.

The previous prime is 85642467011. The next prime is 85642467023. The reversal of 85642467020 is 2076424658.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (85642467023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356786 + ... + 546425.

It is an arithmetic number, because the mean of its divisors is an integer number (4096969632).

Almost surely, 2^85642467020 is an apocalyptic number.

It is an amenable number.

85642467020 is an abundant number, since it is smaller than the sum of its proper divisors (111012075316).

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

85642467020 is a wasteful number, since it uses less digits than its factorization.

85642467020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903662 (or 903660 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 85642467020 in words is "eighty-five billion, six hundred forty-two million, four hundred sixty-seven thousand, twenty".