47145122157 has 8 divisors (see below), whose sum is σ = 71840186176. Its totient is φ = 26940069792.

The previous prime is 47145122149. The next prime is 47145122159. The reversal of 47145122157 is 75122154174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47145122157 - 2³ = 47145122149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47145122159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122502888 + ... + 1122502929.

It is an arithmetic number, because the mean of its divisors is an integer number (8980023272).

Almost surely, 2^47145122157 is an apocalyptic number.

It is an amenable number.

47145122157 is a deficient number, since it is larger than the sum of its proper divisors (24695064019).

47145122157 is a wasteful number, since it uses less digits than its factorization.

47145122157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245005827.

The product of its digits is 78400, while the sum is 39.

The spelling of 47145122157 in words is "forty-seven billion, one hundred forty-five million, one hundred twenty-two thousand, one hundred fifty-seven".