47781363853 has 2 divisors, whose sum is σ = 47781363854. Its totient is φ = 47781363852.

The previous prime is 47781363793. The next prime is 47781363899. The reversal of 47781363853 is 35836318774.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42303439684 + 5477924169 = 205678^2 + 74013^2 .

It is a cyclic number.

It is not a de Polignac number, because 47781363853 - 2⁹ = 47781363341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47781363794 and 47781363803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47781363053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23890681926 + 23890681927.

It is an arithmetic number, because the mean of its divisors is an integer number (23890681927).

Almost surely, 2^47781363853 is an apocalyptic number.

It is an amenable number.

47781363853 is a deficient number, since it is larger than the sum of its proper divisors (1).

47781363853 is an equidigital number, since it uses as much as digits as its factorization.

47781363853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 55.

It can be divided in two parts, 4778 and 1363853, that added together give a palindrome (1368631).

The spelling of 47781363853 in words is "forty-seven billion, seven hundred eighty-one million, three hundred sixty-three thousand, eight hundred fifty-three".