7447474673 has 18 divisors (see below), whose sum is σ = 7682061042. Its totient is φ = 7219641600.

The previous prime is 7447474667. The next prime is 7447474679. The reversal of 7447474673 is 3764747447.

It is an interprime number because it is at equal distance from previous prime (7447474667) and next prime (7447474679).

It can be written as a sum of positive squares in 9 ways, for example, as 672209329 + 6775265344 = 25927^2 + 82312^2 .

It is not a de Polignac number, because 7447474673 - 2¹⁴ = 7447458289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7447474679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 54361061 + ... + 54361197.

It is an arithmetic number, because the mean of its divisors is an integer number (426781169).

Almost surely, 2^7447474673 is an apocalyptic number.

7447474673 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7447474673 is a deficient number, since it is larger than the sum of its proper divisors (234586369).

7447474673 is an equidigital number, since it uses as much as digits as its factorization.

7447474673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 311 counting only the distinct ones).

The product of its digits is 11063808, while the sum is 53.

The square root of 7447474673 is about 86298.7524417358. The cubic root of 7447474673 is about 1952.8535625048.

The spelling of 7447474673 in words is "seven billion, four hundred forty-seven million, four hundred seventy-four thousand, six hundred seventy-three".