47715221475 has 48 divisors (see below), whose sum is σ = 87847001440. Its totient is φ = 25392268800.

The previous prime is 47715221471. The next prime is 47715221501. The reversal of 47715221475 is 57412251774.

It is a happy number.

47715221475 is a `hidden beast` number, since 4 + 7 + 7 + 152 + 21 + 475 = 666.

It is not a de Polignac number, because 47715221475 - 2² = 47715221471 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 47715221475.

It is not an unprimeable number, because it can be changed into a prime (47715221471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 231135 + ... + 385815.

Almost surely, 2^47715221475 is an apocalyptic number.

47715221475 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47715221475 is a deficient number, since it is larger than the sum of its proper divisors (40131779965).

47715221475 is a wasteful number, since it uses less digits than its factorization.

47715221475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155157 (or 155146 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The spelling of 47715221475 in words is "forty-seven billion, seven hundred fifteen million, two hundred twenty-one thousand, four hundred seventy-five".