7426666247 has 48 divisors (see below), whose sum is σ = 10212638016. Its totient is φ = 5253811200.

The previous prime is 7426666201. The next prime is 7426666301.

7426666247 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7426666247 - 2⁶ = 7426666183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7426666195 and 7426666204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7426666547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666143 + ... + 677199.

It is an arithmetic number, because the mean of its divisors is an integer number (212763292).

Almost surely, 2^7426666247 is an apocalyptic number.

7426666247 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7426666247 is a deficient number, since it is larger than the sum of its proper divisors (2785971769).

7426666247 is a wasteful number, since it uses less digits than its factorization.

7426666247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160 (or 11149 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 50.

The square root of 7426666247 is about 86178.1077014342. The cubic root of 7426666247 is about 1951.0330924663.

The spelling of 7426666247 in words is "seven billion, four hundred twenty-six million, six hundred sixty-six thousand, two hundred forty-seven".