47378423117 has 2 divisors, whose sum is σ = 47378423118. Its totient is φ = 47378423116.

The previous prime is 47378423101. The next prime is 47378423159. The reversal of 47378423117 is 71132487374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43873072681 + 3505350436 = 209459^2 + 59206^2 .

It is a cyclic number.

It is not a de Polignac number, because 47378423117 - 2⁴ = 47378423101 is a prime.

It is a super-3 number, since 3×47378423117³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47378423317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23689211558 + 23689211559.

It is an arithmetic number, because the mean of its divisors is an integer number (23689211559).

Almost surely, 2^47378423117 is an apocalyptic number.

It is an amenable number.

47378423117 is a deficient number, since it is larger than the sum of its proper divisors (1).

47378423117 is an equidigital number, since it uses as much as digits as its factorization.

47378423117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 47.

The spelling of 47378423117 in words is "forty-seven billion, three hundred seventy-eight million, four hundred twenty-three thousand, one hundred seventeen".