251045400015453 has 32 divisors (see below), whose sum is σ = 357528544911360. Its totient is φ = 156224902841280.

The previous prime is 251045400015367. The next prime is 251045400015461. The reversal of 251045400015453 is 354510004540152.

It is not a de Polignac number, because 251045400015453 - 2²⁰ = 251045398966877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251045400015353) 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, 12701101 + ... + 25756722.

It is an arithmetic number, because the mean of its divisors is an integer number (11172767028480).

Almost surely, 2^{251045400015453} is an apocalyptic number.

It is an amenable number.

251045400015453 is a deficient number, since it is larger than the sum of its proper divisors (106483144895907).

251045400015453 is a wasteful number, since it uses less digits than its factorization.

251045400015453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38459529.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 251045400015453 in words is "two hundred fifty-one trillion, forty-five billion, four hundred million, fifteen thousand, four hundred fifty-three".