1648371682 has 32 divisors (see below), whose sum is σ = 2686292352. Its totient is φ = 756480384.

The previous prime is 1648371643. The next prime is 1648371691. The reversal of 1648371682 is 2861738461.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 117613 + ... + 130879.

It is an arithmetic number, because the mean of its divisors is an integer number (83946636).

Almost surely, 2^1648371682 is an apocalyptic number.

1648371682 is a deficient number, since it is larger than the sum of its proper divisors (1037920670).

1648371682 is a wasteful number, since it uses less digits than its factorization.

1648371682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13402.

The product of its digits is 387072, while the sum is 46.

The square root of 1648371682 is about 40600.1438667402. The cubic root of 1648371682 is about 1181.2769098803.

The spelling of 1648371682 in words is "one billion, six hundred forty-eight million, three hundred seventy-one thousand, six hundred eighty-two".