47172175605456 has 160 divisors (see below), whose sum is σ = 134247895727616. Its totient is φ = 14154627648000.

The previous prime is 47172175605437. The next prime is 47172175605461. The reversal of 47172175605456 is 65450657127174.

It is a self number, because there is not a number n which added to its sum of digits gives 47172175605456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20872711 + ... + 23022041.

Almost surely, 2^{47172175605456} 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 47172175605456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67123947863808).

47172175605456 is an abundant number, since it is smaller than the sum of its proper divisors (87075720122160).

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

47172175605456 is a wasteful number, since it uses less digits than its factorization.

47172175605456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149761 (or 2149755 counting only the distinct ones).

The product of its (nonzero) digits is 49392000, while the sum is 60.

The spelling of 47172175605456 in words is "forty-seven trillion, one hundred seventy-two billion, one hundred seventy-five million, six hundred five thousand, four hundred fifty-six".