468640251 has 6 divisors (see below), whose sum is σ = 676924820. Its totient is φ = 312426828.

The previous prime is 468640213. The next prime is 468640259. The reversal of 468640251 is 152046864.

468640251 is a `hidden beast` number, since 4 + 6 + 8 + 640 + 2 + 5 + 1 = 666.

It is not a de Polignac number, because 468640251 - 2¹⁵ = 468607483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468640259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26035561 + ... + 26035578.

Almost surely, 2^468640251 is an apocalyptic number.

468640251 is a deficient number, since it is larger than the sum of its proper divisors (208284569).

468640251 is a wasteful number, since it uses less digits than its factorization.

468640251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52071145 (or 52071142 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 468640251 is about 21648.1004016519. The cubic root of 468640251 is about 776.7474967502.

The spelling of 468640251 in words is "four hundred sixty-eight million, six hundred forty thousand, two hundred fifty-one".