44312161251 has 4 divisors (see below), whose sum is σ = 59082881672. Its totient is φ = 29541440832.

The previous prime is 44312161241. The next prime is 44312161301. The reversal of 44312161251 is 15216121344.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44312161251 - 2¹³ = 44312153059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44312161241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7385360206 + ... + 7385360211.

It is an arithmetic number, because the mean of its divisors is an integer number (14770720418).

Almost surely, 2^44312161251 is an apocalyptic number.

44312161251 is a deficient number, since it is larger than the sum of its proper divisors (14770720421).

44312161251 is a wasteful number, since it uses less digits than its factorization.

44312161251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14770720420.

The product of its digits is 5760, while the sum is 30.

Adding to 44312161251 its reverse (15216121344), we get a palindrome (59528282595).

The spelling of 44312161251 in words is "forty-four billion, three hundred twelve million, one hundred sixty-one thousand, two hundred fifty-one".