1948678697 has 8 divisors (see below), whose sum is σ = 2272512000. Its totient is φ = 1670295732.

The previous prime is 1948678679. The next prime is 1948678759. The reversal of 1948678697 is 7968768491.

It is a de Polignac number, because none of the positive numbers 2^k-1948678697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948678607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840297 + ... + 2840982.

It is an arithmetic number, because the mean of its divisors is an integer number (284064000).

Almost surely, 2^1948678697 is an apocalyptic number.

It is an amenable number.

1948678697 is a deficient number, since it is larger than the sum of its proper divisors (323833303).

1948678697 is an frugal number, since it uses more digits than its factorization.

1948678697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681300 (or 5681286 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 65.

The square root of 1948678697 is about 44143.8409860311. The cubic root of 1948678697 is about 1249.0507346587.

The spelling of 1948678697 in words is "one billion, nine hundred forty-eight million, six hundred seventy-eight thousand, six hundred ninety-seven".