84748115057 has 2 divisors, whose sum is σ = 84748115058. Its totient is φ = 84748115056.

The previous prime is 84748114993. The next prime is 84748115093. The reversal of 84748115057 is 75051184748.

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., 58327563121 + 26420551936 = 241511^2 + 162544^2 .

It is a cyclic number.

It is not a de Polignac number, because 84748115057 - 2⁶ = 84748114993 is a prime.

It is a super-2 number, since 2×84748115057² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84748114996 and 84748115014.

It is not a weakly prime, because it can be changed into another prime (84748115857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42374057528 + 42374057529.

It is an arithmetic number, because the mean of its divisors is an integer number (42374057529).

Almost surely, 2^84748115057 is an apocalyptic number.

It is an amenable number.

84748115057 is a deficient number, since it is larger than the sum of its proper divisors (1).

84748115057 is an equidigital number, since it uses as much as digits as its factorization.

84748115057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1254400, while the sum is 50.

The spelling of 84748115057 in words is "eighty-four billion, seven hundred forty-eight million, one hundred fifteen thousand, fifty-seven".