20344351514 has 4 divisors (see below), whose sum is σ = 30516527274. Its totient is φ = 10172175756.

The previous prime is 20344351507. The next prime is 20344351561. The reversal of 20344351514 is 41515344302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41515344302 = 2 ⋅20757672151.

It can be written as a sum of positive squares in only one way, i.e., 18581779225 + 1762572289 = 136315^2 + 41983^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086087877 + ... + 5086087880.

Almost surely, 2^20344351514 is an apocalyptic number.

20344351514 is a deficient number, since it is larger than the sum of its proper divisors (10172175760).

20344351514 is a wasteful number, since it uses less digits than its factorization.

20344351514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10172175759.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 20344351514 its reverse (41515344302), we get a palindrome (61859695816).

The spelling of 20344351514 in words is "twenty billion, three hundred forty-four million, three hundred fifty-one thousand, five hundred fourteen".