7458789157 has 2 divisors, whose sum is σ = 7458789158. Its totient is φ = 7458789156.

The previous prime is 7458789133. The next prime is 7458789179. The reversal of 7458789157 is 7519878547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7008033796 + 450755361 = 83714^2 + 21231^2 .

It is a cyclic number.

It is not a de Polignac number, because 7458789157 - 2¹¹ = 7458787109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7458789095 and 7458789104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7458789257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3729394578 + 3729394579.

It is an arithmetic number, because the mean of its divisors is an integer number (3729394579).

Almost surely, 2^7458789157 is an apocalyptic number.

It is an amenable number.

7458789157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7458789157 is an equidigital number, since it uses as much as digits as its factorization.

7458789157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 61.

The square root of 7458789157 is about 86364.2817199333. The cubic root of 7458789157 is about 1953.8420116699.

The spelling of 7458789157 in words is "seven billion, four hundred fifty-eight million, seven hundred eighty-nine thousand, one hundred fifty-seven".