6425462561 has 10 divisors (see below), whose sum is σ = 7495929762. Its totient is φ = 5507537280.

The previous prime is 6425462557. The next prime is 6425462573. The reversal of 6425462561 is 1652645246.

It can be written as a sum of positive squares in only one way, i.e., 5813147536 + 612315025 = 76244^2 + 24745^2 .

It is not a de Polignac number, because 6425462561 - 2² = 6425462557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6425468561) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1335680 + ... + 1340481.

Almost surely, 2^6425462561 is an apocalyptic number.

It is an amenable number.

6425462561 is a deficient number, since it is larger than the sum of its proper divisors (1070467201).

6425462561 is an frugal number, since it uses more digits than its factorization.

6425462561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676189 (or 2676168 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 6425462561 is about 80158.9830337187. The cubic root of 6425462561 is about 1859.0944990290.

The spelling of 6425462561 in words is "six billion, four hundred twenty-five million, four hundred sixty-two thousand, five hundred sixty-one".