648076451 has 16 divisors (see below), whose sum is σ = 739653120. Its totient is φ = 562077120.

The previous prime is 648076441. The next prime is 648076459. The reversal of 648076451 is 154670846.

It is not a de Polignac number, because 648076451 - 2²² = 643882147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648076399 and 648076408.

It is not an unprimeable number, because it can be changed into a prime (648076459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100346 + ... + 106608.

It is an arithmetic number, because the mean of its divisors is an integer number (46228320).

Almost surely, 2^648076451 is an apocalyptic number.

648076451 is a deficient number, since it is larger than the sum of its proper divisors (91576669).

648076451 is a wasteful number, since it uses less digits than its factorization.

648076451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 648076451 is about 25457.3457178866. The cubic root of 648076451 is about 865.3837721493.

The spelling of 648076451 in words is "six hundred forty-eight million, seventy-six thousand, four hundred fifty-one".