1948571378 has 16 divisors (see below), whose sum is σ = 3149797056. Its totient is φ = 898739280.

The previous prime is 1948571363. The next prime is 1948571381. The reversal of 1948571378 is 8731758491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15833 + ... + 64403.

It is an arithmetic number, because the mean of its divisors is an integer number (196862316).

Almost surely, 2^1948571378 is an apocalyptic number.

1948571378 is a deficient number, since it is larger than the sum of its proper divisors (1201225678).

1948571378 is a wasteful number, since it uses less digits than its factorization.

1948571378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50129.

The product of its digits is 1693440, while the sum is 53.

The square root of 1948571378 is about 44142.6254090080. The cubic root of 1948571378 is about 1249.0278047051.

The spelling of 1948571378 in words is "one billion, nine hundred forty-eight million, five hundred seventy-one thousand, three hundred seventy-eight".