47185870037 has 2 divisors, whose sum is σ = 47185870038. Its totient is φ = 47185870036.

The previous prime is 47185870027. The next prime is 47185870091. The reversal of 47185870037 is 73007858174.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46546336516 + 639533521 = 215746^2 + 25289^2 .

It is a cyclic number.

It is not a de Polignac number, because 47185870037 - 2⁸ = 47185869781 is a prime.

It is a super-2 number, since 2×47185870037² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47185870027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23592935018 + 23592935019.

It is an arithmetic number, because the mean of its divisors is an integer number (23592935019).

Almost surely, 2^47185870037 is an apocalyptic number.

It is an amenable number.

47185870037 is a deficient number, since it is larger than the sum of its proper divisors (1).

47185870037 is an equidigital number, since it uses as much as digits as its factorization.

47185870037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1317120, while the sum is 50.

The spelling of 47185870037 in words is "forty-seven billion, one hundred eighty-five million, eight hundred seventy thousand, thirty-seven".