126981793353 has 8 divisors (see below), whose sum is σ = 169427710368. Its totient is φ = 84595202624.

The previous prime is 126981793319. The next prime is 126981793361. The reversal of 126981793353 is 353397189621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126981793353 is a prime.

It is a super-2 number, since 2×126981793353² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126981793293 and 126981793302.

It is not an unprimeable number, because it can be changed into a prime (126981793303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14826576 + ... + 14835137.

It is an arithmetic number, because the mean of its divisors is an integer number (21178463796).

Almost surely, 2^126981793353 is an apocalyptic number.

It is an amenable number.

126981793353 is a deficient number, since it is larger than the sum of its proper divisors (42445917015).

126981793353 is a wasteful number, since it uses less digits than its factorization.

126981793353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29663143.

The product of its digits is 7348320, while the sum is 57.

The spelling of 126981793353 in words is "one hundred twenty-six billion, nine hundred eighty-one million, seven hundred ninety-three thousand, three hundred fifty-three".