1949985075 has 18 divisors (see below), whose sum is σ = 3224607724. Its totient is φ = 1039788080.

The previous prime is 1949985049. The next prime is 1949985077. The reversal of 1949985075 is 5705899491.

1949985075 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1949985075 - 2⁷ = 1949984947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1949985077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 379876 + ... + 384974.

Almost surely, 2^1949985075 is an apocalyptic number.

1949985075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1949985075 is a deficient number, since it is larger than the sum of its proper divisors (1274622649).

1949985075 is an frugal number, since it uses more digits than its factorization.

1949985075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211 (or 5107 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 57.

The square root of 1949985075 is about 44158.6353389685. The cubic root of 1949985075 is about 1249.3297900525.

The spelling of 1949985075 in words is "one billion, nine hundred forty-nine million, nine hundred eighty-five thousand, seventy-five".