2119493481 has 12 divisors (see below), whose sum is σ = 3287377872. Its totient is φ = 1211139048.

The previous prime is 2119493473. The next prime is 2119493489. The reversal of 2119493481 is 1843949112.

It is an interprime number because it is at equal distance from previous prime (2119493473) and next prime (2119493489).

It is not a de Polignac number, because 2119493481 - 2³ = 2119493473 is a prime.

It is a super-2 number, since 2×2119493481² = 8984505232002994722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2119493489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7209015 + ... + 7209308.

It is an arithmetic number, because the mean of its divisors is an integer number (273948156).

Almost surely, 2^2119493481 is an apocalyptic number.

2119493481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2119493481 is a deficient number, since it is larger than the sum of its proper divisors (1167884391).

2119493481 is a wasteful number, since it uses less digits than its factorization.

2119493481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14418340 (or 14418333 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 2119493481 is about 46037.9569594481. The cubic root of 2119493481 is about 1284.5293397610.

The spelling of 2119493481 in words is "two billion, one hundred nineteen million, four hundred ninety-three thousand, four hundred eighty-one".