1648244426015 has 16 divisors (see below), whose sum is σ = 2160860996736. Its totient is φ = 1196968106400.

The previous prime is 1648244426011. The next prime is 1648244426029. The reversal of 1648244426015 is 5106244428461.

It is not a de Polignac number, because 1648244426015 - 2² = 1648244426011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648244426011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21901001 + ... + 21976130.

It is an arithmetic number, because the mean of its divisors is an integer number (135053812296).

Almost surely, 2^{1648244426015} is an apocalyptic number.

1648244426015 is a deficient number, since it is larger than the sum of its proper divisors (512616570721).

1648244426015 is a wasteful number, since it uses less digits than its factorization.

1648244426015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43877830.

The product of its (nonzero) digits is 1474560, while the sum is 47.

The spelling of 1648244426015 in words is "one trillion, six hundred forty-eight billion, two hundred forty-four million, four hundred twenty-six thousand, fifteen".