1949495685 has 8 divisors (see below), whose sum is σ = 3119193120. Its totient is φ = 1039731024.

The previous prime is 1949495683. The next prime is 1949495693. The reversal of 1949495685 is 5865949491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1949495685 - 2¹ = 1949495683 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949495683) 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, 64983175 + ... + 64983204.

It is an arithmetic number, because the mean of its divisors is an integer number (389899140).

Almost surely, 2^1949495685 is an apocalyptic number.

1949495685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1949495685 is a deficient number, since it is larger than the sum of its proper divisors (1169697435).

1949495685 is a wasteful number, since it uses less digits than its factorization.

1949495685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129966387.

The product of its digits is 13996800, while the sum is 60.

The square root of 1949495685 is about 44153.0937194666. The cubic root of 1949495685 is about 1249.2252660624.

The spelling of 1949495685 in words is "one billion, nine hundred forty-nine million, four hundred ninety-five thousand, six hundred eighty-five".