1948012793 has 4 divisors (see below), whose sum is σ = 1965884580. Its totient is φ = 1930141008.

The previous prime is 1948012699. The next prime is 1948012817. The reversal of 1948012793 is 3972108491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 851939344 + 1096073449 = 29188^2 + 33107^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948012793 - 2²² = 1943818489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1948012993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8935730 + ... + 8935947.

It is an arithmetic number, because the mean of its divisors is an integer number (491471145).

Almost surely, 2^1948012793 is an apocalyptic number.

It is an amenable number.

1948012793 is a deficient number, since it is larger than the sum of its proper divisors (17871787).

1948012793 is a wasteful number, since it uses less digits than its factorization.

1948012793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17871786.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1948012793 is about 44136.2979077312. The cubic root of 1948012793 is about 1248.9084429200.

The spelling of 1948012793 in words is "one billion, nine hundred forty-eight million, twelve thousand, seven hundred ninety-three".