438019990796 has 6 divisors (see below), whose sum is σ = 766534983900. Its totient is φ = 219009995396.

The previous prime is 438019990789. The next prime is 438019990799. The reversal of 438019990796 is 697099910834.

It is not an unprimeable number, because it can be changed into a prime (438019990799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54752498846 + ... + 54752498853.

It is an arithmetic number, because the mean of its divisors is an integer number (127755830650).

Almost surely, 2^438019990796 is an apocalyptic number.

It is an amenable number.

438019990796 is a deficient number, since it is larger than the sum of its proper divisors (328514993104).

438019990796 is a wasteful number, since it uses less digits than its factorization.

438019990796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109504997703 (or 109504997701 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 65.

The spelling of 438019990796 in words is "four hundred thirty-eight billion, nineteen million, nine hundred ninety thousand, seven hundred ninety-six".