1919810948 has 24 divisors (see below), whose sum is σ = 3669816864. Its totient is φ = 871516800.

The previous prime is 1919810947. The next prime is 1919810957. The reversal of 1919810948 is 8490189191.

It is a junction number, because it is equal to n+sod(n) for n = 1919810896 and 1919810905.

It is not an unprimeable number, because it can be changed into a prime (1919810947) 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, 6908 + ... + 62348.

It is an arithmetic number, because the mean of its divisors is an integer number (152909036).

Almost surely, 2^1919810948 is an apocalyptic number.

It is an amenable number.

1919810948 is a deficient number, since it is larger than the sum of its proper divisors (1750005916).

1919810948 is a wasteful number, since it uses less digits than its factorization.

1919810948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56243 (or 56241 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 50.

The square root of 1919810948 is about 43815.6472963712. The cubic root of 1919810948 is about 1242.8522073954.

The spelling of 1919810948 in words is "one billion, nine hundred nineteen million, eight hundred ten thousand, nine hundred forty-eight".