7014789981 has 6 divisors (see below), whose sum is σ = 10132474430. Its totient is φ = 4676526648.

The previous prime is 7014789967. The next prime is 7014790007. The reversal of 7014789981 is 1899874107.

7014789981 is a `hidden beast` number, since 7 + 0 + 1 + 478 + 99 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6745993956 + 268796025 = 82134^2 + 16395^2 .

It is not a de Polignac number, because 7014789981 - 2⁹ = 7014789469 is a prime.

It is a super-2 number, since 2×7014789981² = 98414556955075960722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7014789181) 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 5 ways as a sum of consecutive naturals, for example, 389710546 + ... + 389710563.

Almost surely, 2^7014789981 is an apocalyptic number.

It is an amenable number.

7014789981 is a deficient number, since it is larger than the sum of its proper divisors (3117684449).

7014789981 is a wasteful number, since it uses less digits than its factorization.

7014789981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779421115 (or 779421112 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 54.

The square root of 7014789981 is about 83754.3430575394. The cubic root of 7014789981 is about 1914.2774834117.

The spelling of 7014789981 in words is "seven billion, fourteen million, seven hundred eighty-nine thousand, nine hundred eighty-one".