485019656251 has 32 divisors (see below), whose sum is σ = 558496512000. Its totient is φ = 417496197888.

The previous prime is 485019656117. The next prime is 485019656267. The reversal of 485019656251 is 152656910584.

It is a cyclic number.

It is not a de Polignac number, because 485019656251 - 2⁹ = 485019655739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485019656291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4852740 + ... + 4951678.

It is an arithmetic number, because the mean of its divisors is an integer number (17453016000).

Almost surely, 2^485019656251 is an apocalyptic number.

485019656251 is a deficient number, since it is larger than the sum of its proper divisors (73476855749).

485019656251 is a wasteful number, since it uses less digits than its factorization.

485019656251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99283.

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 485019656251 in words is "four hundred eighty-five billion, nineteen million, six hundred fifty-six thousand, two hundred fifty-one".