7612641247 has 4 divisors (see below), whose sum is σ = 7613681680. Its totient is φ = 7611600816.

The previous prime is 7612641233. The next prime is 7612641271. The reversal of 7612641247 is 7421462167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7421462167 = 7 ⋅1060208881.

It is a cyclic number.

It is not a de Polignac number, because 7612641247 - 2¹⁹ = 7612116959 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 (7612641287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509163 + ... + 523900.

It is an arithmetic number, because the mean of its divisors is an integer number (1903420420).

Almost surely, 2^7612641247 is an apocalyptic number.

7612641247 is a deficient number, since it is larger than the sum of its proper divisors (1040433).

7612641247 is a wasteful number, since it uses less digits than its factorization.

7612641247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040432.

The product of its digits is 112896, while the sum is 40.

The square root of 7612641247 is about 87250.4512710393. The cubic root of 7612641247 is about 1967.1846242403.

The spelling of 7612641247 in words is "seven billion, six hundred twelve million, six hundred forty-one thousand, two hundred forty-seven".