85720570052 has 36 divisors (see below), whose sum is σ = 165894132096. Its totient is φ = 38721552480.

The previous prime is 85720569953. The next prime is 85720570057. The reversal of 85720570052 is 25007502758.

It is a super-2 number, since 2×85720570052² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85720569991 and 85720570009.

It is not an unprimeable number, because it can be changed into a prime (85720570057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1317224 + ... + 1380767.

It is an arithmetic number, because the mean of its divisors is an integer number (4608170336).

Almost surely, 2^85720570052 is an apocalyptic number.

It is an amenable number.

85720570052 is a deficient number, since it is larger than the sum of its proper divisors (80173562044).

85720570052 is a wasteful number, since it uses less digits than its factorization.

85720570052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698068 (or 2698053 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 85720570052 in words is "eighty-five billion, seven hundred twenty million, five hundred seventy thousand, fifty-two".