47745732157 has 2 divisors, whose sum is σ = 47745732158. Its totient is φ = 47745732156.

The previous prime is 47745732119. The next prime is 47745732161. The reversal of 47745732157 is 75123754774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25359288516 + 22386443641 = 159246^2 + 149621^2 .

It is a cyclic number.

It is not a de Polignac number, because 47745732157 - 2²⁷ = 47611514429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47745732107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23872866078 + 23872866079.

It is an arithmetic number, because the mean of its divisors is an integer number (23872866079).

Almost surely, 2^47745732157 is an apocalyptic number.

It is an amenable number.

47745732157 is a deficient number, since it is larger than the sum of its proper divisors (1).

47745732157 is an equidigital number, since it uses as much as digits as its factorization.

47745732157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5762400, while the sum is 52.

The spelling of 47745732157 in words is "forty-seven billion, seven hundred forty-five million, seven hundred thirty-two thousand, one hundred fifty-seven".