2698023157 has 2 divisors, whose sum is σ = 2698023158. Its totient is φ = 2698023156.

The previous prime is 2698023113. The next prime is 2698023173. The reversal of 2698023157 is 7513208962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2358947761 + 339075396 = 48569^2 + 18414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2698023157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2698023457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349011578 + 1349011579.

It is an arithmetic number, because the mean of its divisors is an integer number (1349011579).

Almost surely, 2^2698023157 is an apocalyptic number.

It is an amenable number.

2698023157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2698023157 is an equidigital number, since it uses as much as digits as its factorization.

2698023157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2698023157 is about 51942.4985633152. The cubic root of 2698023157 is about 1392.1367266514.

The spelling of 2698023157 in words is "two billion, six hundred ninety-eight million, twenty-three thousand, one hundred fifty-seven".