85431546801232 has 10 divisors (see below), whose sum is σ = 165523621927418. Its totient is φ = 42715773400608.

The previous prime is 85431546801187. The next prime is 85431546801257. The reversal of 85431546801232 is 23210864513458.

It can be written as a sum of positive squares in only one way, i.e., 82966885435456 + 2464661365776 = 9108616^2 + 1569924^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85431546801232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2669735837523 + ... + 2669735837554.

Almost surely, 2^{85431546801232} is an apocalyptic number.

It is an amenable number.

85431546801232 is a deficient number, since it is larger than the sum of its proper divisors (80092075126186).

85431546801232 is a wasteful number, since it uses less digits than its factorization.

85431546801232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339471675085 (or 5339471675079 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 52.

The spelling of 85431546801232 in words is "eighty-five trillion, four hundred thirty-one billion, five hundred forty-six million, eight hundred one thousand, two hundred thirty-two".