85486121536 has 28 divisors (see below), whose sum is σ = 169646112828. Its totient is φ = 42740644352.

The previous prime is 85486121533. The next prime is 85486121549. The reversal of 85486121536 is 63512168458.

It can be written as a sum of positive squares in 2 ways, for example, as 11676099136 + 73810022400 = 108056^2 + 271680^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85486121536.

It is not an unprimeable number, because it can be changed into a prime (85486121531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786110 + ... + 1833346.

Almost surely, 2^85486121536 is an apocalyptic number.

It is an amenable number.

85486121536 is a deficient number, since it is larger than the sum of its proper divisors (84159991292).

85486121536 is a wasteful number, since it uses less digits than its factorization.

85486121536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75526 (or 75516 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The spelling of 85486121536 in words is "eighty-five billion, four hundred eighty-six million, one hundred twenty-one thousand, five hundred thirty-six".