10449343978 has 8 divisors (see below), whose sum is σ = 15674586372. Its totient is φ = 5224481856.

The previous prime is 10449343943. The next prime is 10449343979. The reversal of 10449343978 is 87934394401.

It can be written as a sum of positive squares in 2 ways, for example, as 9581864769 + 867479209 = 97887^2 + 29453^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10449343979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11775 + ... + 145042.

Almost surely, 2^10449343978 is an apocalyptic number.

10449343978 is a deficient number, since it is larger than the sum of its proper divisors (5225242394).

10449343978 is a wasteful number, since it uses less digits than its factorization.

10449343978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190136.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 10449343978 in words is "ten billion, four hundred forty-nine million, three hundred forty-three thousand, nine hundred seventy-eight".