85175957420 has 24 divisors (see below), whose sum is σ = 185037426000. Its totient is φ = 32895541952.

The previous prime is 85175957407. The next prime is 85175957423. The reversal of 85175957420 is 2475957158.

It is not an unprimeable number, because it can be changed into a prime (85175957423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73426970 + ... + 73428129.

It is an arithmetic number, because the mean of its divisors is an integer number (7709892750).

Almost surely, 2^85175957420 is an apocalyptic number.

It is an amenable number.

85175957420 is an abundant number, since it is smaller than the sum of its proper divisors (99861468580).

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

85175957420 is a wasteful number, since it uses less digits than its factorization.

85175957420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146855137 (or 146855135 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 53.

The spelling of 85175957420 in words is "eighty-five billion, one hundred seventy-five million, nine hundred fifty-seven thousand, four hundred twenty".