1425959865 has 96 divisors (see below), whose sum is σ = 2830464000. Its totient is φ = 657360000.

The previous prime is 1425959831. The next prime is 1425959891. The reversal of 1425959865 is 5689595241.

1425959865 is a `hidden beast` number, since 1 + 42 + 5 + 9 + 598 + 6 + 5 = 666.

It is not a de Polignac number, because 1425959865 - 2⁷ = 1425959737 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2857386 + ... + 2857884.

It is an arithmetic number, because the mean of its divisors is an integer number (29484000).

Almost surely, 2^1425959865 is an apocalyptic number.

1425959865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425959865 is a deficient number, since it is larger than the sum of its proper divisors (1404504135).

1425959865 is a wasteful number, since it uses less digits than its factorization.

1425959865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 792 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 54.

The square root of 1425959865 is about 37761.8837586262. The cubic root of 1425959865 is about 1125.5611659618.

The spelling of 1425959865 in words is "one billion, four hundred twenty-five million, nine hundred fifty-nine thousand, eight hundred sixty-five".