344876128653 has 8 divisors (see below), whose sum is σ = 525525529408. Its totient is φ = 197072073504.

The previous prime is 344876128643. The next prime is 344876128661. The reversal of 344876128653 is 356821678443.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 344876128653 - 2¹⁷ = 344875997581 is a prime.

It is a super-2 number, since 2×344876128653² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344876128593 and 344876128602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344876128643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8211336376 + ... + 8211336417.

It is an arithmetic number, because the mean of its divisors is an integer number (65690691176).

Almost surely, 2^344876128653 is an apocalyptic number.

It is an amenable number.

344876128653 is a deficient number, since it is larger than the sum of its proper divisors (180649400755).

344876128653 is a wasteful number, since it uses less digits than its factorization.

344876128653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16422672803.

The product of its digits is 23224320, while the sum is 57.

The spelling of 344876128653 in words is "three hundred forty-four billion, eight hundred seventy-six million, one hundred twenty-eight thousand, six hundred fifty-three".