47621609145 has 96 divisors (see below), whose sum is σ = 91017658368. Its totient is φ = 22842000000.

The previous prime is 47621609143. The next prime is 47621609179. The reversal of 47621609145 is 54190612674.

47621609145 is a `hidden beast` number, since 4 + 7 + 6 + 21 + 609 + 14 + 5 = 666.

47621609145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47621609145 - 2¹ = 47621609143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 47621609145.

It is not an unprimeable number, because it can be changed into a prime (47621609143) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20254720 + ... + 20257070.

It is an arithmetic number, because the mean of its divisors is an integer number (948100608).

Almost surely, 2^47621609145 is an apocalyptic number.

47621609145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47621609145 is a deficient number, since it is larger than the sum of its proper divisors (43396049223).

47621609145 is a wasteful number, since it uses less digits than its factorization.

47621609145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 47621609145 in words is "forty-seven billion, six hundred twenty-one million, six hundred nine thousand, one hundred forty-five".