1425678677 has 2 divisors, whose sum is σ = 1425678678. Its totient is φ = 1425678676.

The previous prime is 1425678647. The next prime is 1425678739. The reversal of 1425678677 is 7768765241.

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., 1094220241 + 331458436 = 33079^2 + 18206^2 .

It is an emirp because it is prime and its reverse (7768765241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1425678677 - 2⁶ = 1425678613 is a prime.

It is a super-3 number, since 3×1425678677³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425678647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712839338 + 712839339.

It is an arithmetic number, because the mean of its divisors is an integer number (712839339).

Almost surely, 2^1425678677 is an apocalyptic number.

It is an amenable number.

1425678677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425678677 is an equidigital number, since it uses as much as digits as its factorization.

1425678677 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1425678677 is about 37758.1604027527. The cubic root of 1425678677 is about 1125.4871771803.

The spelling of 1425678677 in words is "one billion, four hundred twenty-five million, six hundred seventy-eight thousand, six hundred seventy-seven".