2648212138 has 32 divisors (see below), whose sum is σ = 4817336832. Its totient is φ = 1075291200.

The previous prime is 2648212129. The next prime is 2648212141. The reversal of 2648212138 is 8312128462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2648212097 and 2648212106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140481 + ... + 158212.

It is an arithmetic number, because the mean of its divisors is an integer number (150541776).

Almost surely, 2^2648212138 is an apocalyptic number.

2648212138 is a deficient number, since it is larger than the sum of its proper divisors (2169124694).

2648212138 is a wasteful number, since it uses less digits than its factorization.

2648212138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298750.

The product of its digits is 36864, while the sum is 37.

The square root of 2648212138 is about 51460.7825241708. The cubic root of 2648212138 is about 1383.5162270141.

The spelling of 2648212138 in words is "two billion, six hundred forty-eight million, two hundred twelve thousand, one hundred thirty-eight".