47120157723 has 4 divisors (see below), whose sum is σ = 62826876968. Its totient is φ = 31413438480.

The previous prime is 47120157691. The next prime is 47120157739. The reversal of 47120157723 is 32775102174.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47120157723 - 2⁵ = 47120157691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47120157323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7853359618 + ... + 7853359623.

It is an arithmetic number, because the mean of its divisors is an integer number (15706719242).

Almost surely, 2^47120157723 is an apocalyptic number.

47120157723 is a deficient number, since it is larger than the sum of its proper divisors (15706719245).

47120157723 is a wasteful number, since it uses less digits than its factorization.

47120157723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15706719244.

The product of its (nonzero) digits is 82320, while the sum is 39.

Adding to 47120157723 its reverse (32775102174), we get a palindrome (79895259897).

The spelling of 47120157723 in words is "forty-seven billion, one hundred twenty million, one hundred fifty-seven thousand, seven hundred twenty-three".