7956818357 has 2 divisors, whose sum is σ = 7956818358. Its totient is φ = 7956818356.

The previous prime is 7956818339. The next prime is 7956818407. The reversal of 7956818357 is 7538186597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7940770321 + 16048036 = 89111^2 + 4006^2 .

It is a cyclic number.

It is not a de Polignac number, because 7956818357 - 2¹⁰ = 7956817333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7956818296 and 7956818305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7956815357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3978409178 + 3978409179.

It is an arithmetic number, because the mean of its divisors is an integer number (3978409179).

Almost surely, 2^7956818357 is an apocalyptic number.

It is an amenable number.

7956818357 is a deficient number, since it is larger than the sum of its proper divisors (1).

7956818357 is an equidigital number, since it uses as much as digits as its factorization.

7956818357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12700800, while the sum is 59.

The square root of 7956818357 is about 89200.9997533660. Note that the first 3 decimals coincide. The cubic root of 7956818357 is about 1996.3950357706.

The spelling of 7956818357 in words is "seven billion, nine hundred fifty-six million, eight hundred eighteen thousand, three hundred fifty-seven".