9768280157 has 2 divisors, whose sum is σ = 9768280158. Its totient is φ = 9768280156.

The previous prime is 9768280129. The next prime is 9768280177. The reversal of 9768280157 is 7510828679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9646971961 + 121308196 = 98219^2 + 11014^2 .

It is a cyclic number.

It is not a de Polignac number, because 9768280157 - 2⁸ = 9768279901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9768280099 and 9768280108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9768280177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4884140078 + 4884140079.

It is an arithmetic number, because the mean of its divisors is an integer number (4884140079).

Almost surely, 2^9768280157 is an apocalyptic number.

It is an amenable number.

9768280157 is a deficient number, since it is larger than the sum of its proper divisors (1).

9768280157 is an equidigital number, since it uses as much as digits as its factorization.

9768280157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The square root of 9768280157 is about 98834.6101171042. The cubic root of 9768280157 is about 2137.6636333218.

The spelling of 9768280157 in words is "nine billion, seven hundred sixty-eight million, two hundred eighty thousand, one hundred fifty-seven".