251264454023 has 16 divisors (see below), whose sum is σ = 275816572416. Its totient is φ = 226998001440.

The previous prime is 251264454013. The next prime is 251264454041. The reversal of 251264454023 is 320454462152.

It is a cyclic number.

It is not a de Polignac number, because 251264454023 - 2⁸ = 251264453767 is a prime.

It is a super-3 number, since 3×251264454023³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251264454013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8551265 + ... + 8580597.

It is an arithmetic number, because the mean of its divisors is an integer number (17238535776).

Almost surely, 2^251264454023 is an apocalyptic number.

251264454023 is a deficient number, since it is larger than the sum of its proper divisors (24552118393).

251264454023 is a wasteful number, since it uses less digits than its factorization.

251264454023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34174.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 251264454023 in words is "two hundred fifty-one billion, two hundred sixty-four million, four hundred fifty-four thousand, twenty-three".