6787426157 has 2 divisors, whose sum is σ = 6787426158. Its totient is φ = 6787426156.

The previous prime is 6787426153. The next prime is 6787426189. The reversal of 6787426157 is 7516247876.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6208494436 + 578931721 = 78794^2 + 24061^2 .

It is a cyclic number.

It is not a de Polignac number, because 6787426157 - 2² = 6787426153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6787426099 and 6787426108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6787426153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393713078 + 3393713079.

It is an arithmetic number, because the mean of its divisors is an integer number (3393713079).

Almost surely, 2^6787426157 is an apocalyptic number.

It is an amenable number.

6787426157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6787426157 is an equidigital number, since it uses as much as digits as its factorization.

6787426157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 53.

The square root of 6787426157 is about 82385.8371141545. The cubic root of 6787426157 is about 1893.3680281910.

The spelling of 6787426157 in words is "six billion, seven hundred eighty-seven million, four hundred twenty-six thousand, one hundred fifty-seven".