2251134412345 has 32 divisors (see below), whose sum is σ = 3325093228800. Its totient is φ = 1424747784960.

The previous prime is 2251134412309. The next prime is 2251134412349. The reversal of 2251134412345 is 5432144311522.

It is not a de Polignac number, because 2251134412345 - 2⁹ = 2251134411833 is a prime.

It is a super-2 number, since 2×2251134412345² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2251134412349) 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, 4278150 + ... + 4775440.

It is an arithmetic number, because the mean of its divisors is an integer number (103909163400).

Almost surely, 2^{2251134412345} is an apocalyptic number.

It is an amenable number.

2251134412345 is a deficient number, since it is larger than the sum of its proper divisors (1073958816455).

2251134412345 is a wasteful number, since it uses less digits than its factorization.

2251134412345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507265.

The product of its digits is 115200, while the sum is 37.

Adding to 2251134412345 its reverse (5432144311522), we get a palindrome (7683278723867).

The spelling of 2251134412345 in words is "two trillion, two hundred fifty-one billion, one hundred thirty-four million, four hundred twelve thousand, three hundred forty-five".