40819397896 has 16 divisors (see below), whose sum is σ = 76562298540. Its totient is φ = 20402784960.

The previous prime is 40819397893. The next prime is 40819397939. The reversal of 40819397896 is 69879391804.

It can be written as a sum of positive squares in 2 ways, for example, as 40717589796 + 101808100 = 201786^2 + 10090^2 .

It is not an unprimeable number, because it can be changed into a prime (40819397893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839115 + ... + 886426.

Almost surely, 2^40819397896 is an apocalyptic number.

It is an amenable number.

40819397896 is a deficient number, since it is larger than the sum of its proper divisors (35742900644).

40819397896 is a wasteful number, since it uses less digits than its factorization.

40819397896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728504 (or 1728500 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 40819397896 in words is "forty billion, eight hundred nineteen million, three hundred ninety-seven thousand, eight hundred ninety-six".