1948620871 has 2 divisors, whose sum is σ = 1948620872. Its totient is φ = 1948620870.

The previous prime is 1948620859. The next prime is 1948620911. The reversal of 1948620871 is 1780268491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1948620871 - 2²³ = 1940232263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948620811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974310435 + 974310436.

It is an arithmetic number, because the mean of its divisors is an integer number (974310436).

Almost surely, 2^1948620871 is an apocalyptic number.

1948620871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948620871 is an equidigital number, since it uses as much as digits as its factorization.

1948620871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1948620871 is about 44143.1860087149. The cubic root of 1948620871 is about 1249.0383795653.

It can be divided in two parts, 1948620 and 871, that added together give a palindrome (1949491).

The spelling of 1948620871 in words is "one billion, nine hundred forty-eight million, six hundred twenty thousand, eight hundred seventy-one".