85147635475448 has 128 divisors (see below), whose sum is σ = 196776593395200. Its totient is φ = 33636457806336.

The previous prime is 85147635475447. The next prime is 85147635475451. The reversal of 85147635475448 is 84457453674158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85147635475447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1724903615 + ... + 1724952977.

It is an arithmetic number, because the mean of its divisors is an integer number (1537317135900).

Almost surely, 2^{85147635475448} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85147635475448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98388296697600).

85147635475448 is an abundant number, since it is smaller than the sum of its proper divisors (111628957919752).

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

85147635475448 is a wasteful number, since it uses less digits than its factorization.

85147635475448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52741 (or 52737 counting only the distinct ones).

The product of its digits is 1806336000, while the sum is 71.

The spelling of 85147635475448 in words is "eighty-five trillion, one hundred forty-seven billion, six hundred thirty-five million, four hundred seventy-five thousand, four hundred forty-eight".