84800440057 has 2 divisors, whose sum is σ = 84800440058. Its totient is φ = 84800440056.

The previous prime is 84800440013. The next prime is 84800440099. The reversal of 84800440057 is 75004400848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46045005561 + 38755434496 = 214581^2 + 196864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84800440057 is a prime.

It is a super-2 number, since 2×84800440057² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84800440457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42400220028 + 42400220029.

It is an arithmetic number, because the mean of its divisors is an integer number (42400220029).

Almost surely, 2^84800440057 is an apocalyptic number.

It is an amenable number.

84800440057 is a deficient number, since it is larger than the sum of its proper divisors (1).

84800440057 is an equidigital number, since it uses as much as digits as its factorization.

84800440057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 40.

The spelling of 84800440057 in words is "eighty-four billion, eight hundred million, four hundred forty thousand, fifty-seven".