1948719701 has 2 divisors, whose sum is σ = 1948719702. Its totient is φ = 1948719700.

The previous prime is 1948719611. The next prime is 1948719739. The reversal of 1948719701 is 1079178491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1645924900 + 302794801 = 40570^2 + 17401^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948719701 - 2²² = 1944525397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948719001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974359850 + 974359851.

It is an arithmetic number, because the mean of its divisors is an integer number (974359851).

Almost surely, 2^1948719701 is an apocalyptic number.

It is an amenable number.

1948719701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948719701 is an equidigital number, since it uses as much as digits as its factorization.

1948719701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 47.

The square root of 1948719701 is about 44144.3054198387. The cubic root of 1948719701 is about 1249.0594954184.

The spelling of 1948719701 in words is "one billion, nine hundred forty-eight million, seven hundred nineteen thousand, seven hundred one".