1896954813 has 48 divisors (see below), whose sum is σ = 3190212480. Its totient is φ = 1075980672.

The previous prime is 1896954799. The next prime is 1896954817. The reversal of 1896954813 is 3184596981.

1896954813 is a `hidden beast` number, since 1 + 8 + 96 + 9 + 548 + 1 + 3 = 666.

It is not a de Polignac number, because 1896954813 - 2⁴ = 1896954797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1896954813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896954817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70720 + ... + 93782.

It is an arithmetic number, because the mean of its divisors is an integer number (66462760).

Almost surely, 2^1896954813 is an apocalyptic number.

1896954813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1896954813 is a deficient number, since it is larger than the sum of its proper divisors (1293257667).

1896954813 is a wasteful number, since it uses less digits than its factorization.

1896954813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23138 (or 23135 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 1896954813 is about 43554.0447375442. The cubic root of 1896954813 is about 1237.9002821421.

The spelling of 1896954813 in words is "one billion, eight hundred ninety-six million, nine hundred fifty-four thousand, eight hundred thirteen".