48856861457 has 2 divisors, whose sum is σ = 48856861458. Its totient is φ = 48856861456.

The previous prime is 48856861433. The next prime is 48856861463. The reversal of 48856861457 is 75416865884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39726867856 + 9129993601 = 199316^2 + 95551^2 .

It is a cyclic number.

It is not a de Polignac number, because 48856861457 - 2¹⁴ = 48856845073 is a prime.

It is a super-2 number, since 2×48856861457² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48856861457.

It is not a weakly prime, because it can be changed into another prime (48856861057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24428430728 + 24428430729.

It is an arithmetic number, because the mean of its divisors is an integer number (24428430729).

Almost surely, 2^48856861457 is an apocalyptic number.

It is an amenable number.

48856861457 is a deficient number, since it is larger than the sum of its proper divisors (1).

48856861457 is an equidigital number, since it uses as much as digits as its factorization.

48856861457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51609600, while the sum is 62.

The spelling of 48856861457 in words is "forty-eight billion, eight hundred fifty-six million, eight hundred sixty-one thousand, four hundred fifty-seven".