7913491444 has 12 divisors (see below), whose sum is σ = 13850421984. Its totient is φ = 3956228024.

The previous prime is 7913491373. The next prime is 7913491459. The reversal of 7913491444 is 4441943197.

It is a super-2 number, since 2×7913491444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7913491394 and 7913491403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93952 + ... + 157015.

It is an arithmetic number, because the mean of its divisors is an integer number (1154201832).

Almost surely, 2^7913491444 is an apocalyptic number.

It is an amenable number.

7913491444 is a deficient number, since it is larger than the sum of its proper divisors (5936930540).

7913491444 is a wasteful number, since it uses less digits than its factorization.

7913491444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258854 (or 258852 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 7913491444 is about 88957.8070997706. The cubic root of 7913491444 is about 1992.7648112508.

The spelling of 7913491444 in words is "seven billion, nine hundred thirteen million, four hundred ninety-one thousand, four hundred forty-four".