7398715157 has 2 divisors, whose sum is σ = 7398715158. Its totient is φ = 7398715156.

The previous prime is 7398715133. The next prime is 7398715169. The reversal of 7398715157 is 7515178937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3949619716 + 3449095441 = 62846^2 + 58729^2 .

It is a cyclic number.

It is not a de Polignac number, because 7398715157 - 2¹⁴ = 7398698773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7398715099 and 7398715108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7398715057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3699357578 + 3699357579.

It is an arithmetic number, because the mean of its divisors is an integer number (3699357579).

Almost surely, 2^7398715157 is an apocalyptic number.

It is an amenable number.

7398715157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7398715157 is an equidigital number, since it uses as much as digits as its factorization.

7398715157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 53.

The square root of 7398715157 is about 86015.7843479905. The cubic root of 7398715157 is about 1948.5823715342.

The spelling of 7398715157 in words is "seven billion, three hundred ninety-eight million, seven hundred fifteen thousand, one hundred fifty-seven".