7423488981 has 12 divisors (see below), whose sum is σ = 10882860352. Its totient is φ = 4875126696.

The previous prime is 7423488971. The next prime is 7423488983. The reversal of 7423488981 is 1898843247.

It is a happy number.

7423488981 is a `hidden beast` number, since 74 + 2 + 3 + 488 + 98 + 1 = 666.

It is not a de Polignac number, because 7423488981 - 2⁵ = 7423488949 is a prime.

It is a super-2 number, since 2×7423488981² (a number of 21 digits) 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 (7423488983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6154861 + ... + 6156066.

Almost surely, 2^7423488981 is an apocalyptic number.

It is an amenable number.

7423488981 is a deficient number, since it is larger than the sum of its proper divisors (3459371371).

7423488981 is a wasteful number, since it uses less digits than its factorization.

7423488981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311000 (or 12310997 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 7423488981 is about 86159.6714304320. The cubic root of 7423488981 is about 1950.7548233604.

The spelling of 7423488981 in words is "seven billion, four hundred twenty-three million, four hundred eighty-eight thousand, nine hundred eighty-one".