6451879425 has 24 divisors (see below), whose sum is σ = 10705103520. Its totient is φ = 3428745600.

The previous prime is 6451879409. The next prime is 6451879453. The reversal of 6451879425 is 5249781546.

It is not a de Polignac number, because 6451879425 - 2⁴ = 6451879409 is a prime.

It is a super-2 number, since 2×6451879425² = 83253496229476661250, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131995 + ... + 174144.

It is an arithmetic number, because the mean of its divisors is an integer number (446045980).

Almost surely, 2^6451879425 is an apocalyptic number.

It is an amenable number.

6451879425 is a deficient number, since it is larger than the sum of its proper divisors (4253224095).

6451879425 is a wasteful number, since it uses less digits than its factorization.

6451879425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306433 (or 306428 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 6451879425 is about 80323.5919577804. The cubic root of 6451879425 is about 1861.6387670240.

The spelling of 6451879425 in words is "six billion, four hundred fifty-one million, eight hundred seventy-nine thousand, four hundred twenty-five".