13438877950 has 24 divisors (see below), whose sum is σ = 25121941200. Its totient is φ = 5348534400.

The previous prime is 13438877923. The next prime is 13438877971. The reversal of 13438877950 is 5977883431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13438877891 and 13438877900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 665371 + ... + 685270.

It is an arithmetic number, because the mean of its divisors is an integer number (1046747550).

Almost surely, 2^13438877950 is an apocalyptic number.

13438877950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13438877950 is a deficient number, since it is larger than the sum of its proper divisors (11683063250).

13438877950 is a wasteful number, since it uses less digits than its factorization.

13438877950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350852 (or 1350847 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 13438877950 in words is "thirteen billion, four hundred thirty-eight million, eight hundred seventy-seven thousand, nine hundred fifty".