1648059678731 has 2 divisors, whose sum is σ = 1648059678732. Its totient is φ = 1648059678730.

The previous prime is 1648059678719. The next prime is 1648059678757. The reversal of 1648059678731 is 1378769508461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1648059678731 is a prime.

It is a super-2 number, since 2×1648059678731² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1648059678431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824029839365 + 824029839366.

It is an arithmetic number, because the mean of its divisors is an integer number (824029839366).

Almost surely, 2^{1648059678731} is an apocalyptic number.

1648059678731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648059678731 is an equidigital number, since it uses as much as digits as its factorization.

1648059678731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 1648059678731 in words is "one trillion, six hundred forty-eight billion, fifty-nine million, six hundred seventy-eight thousand, seven hundred thirty-one".