40679191788 has 24 divisors (see below), whose sum is σ = 97125513408. Its totient is φ = 13244387856.

The previous prime is 40679191781. The next prime is 40679191871. The reversal of 40679191788 is 88719197604.

It is not an unprimeable number, because it can be changed into a prime (40679191781) 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 7 ways as a sum of consecutive naturals, for example, 39417306 + ... + 39418337.

It is an arithmetic number, because the mean of its divisors is an integer number (4046896392).

Almost surely, 2^40679191788 is an apocalyptic number.

It is an amenable number.

40679191788 is an abundant number, since it is smaller than the sum of its proper divisors (56446321620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40679191788 is a wasteful number, since it uses less digits than its factorization.

40679191788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78835693 (or 78835691 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 40679191788 in words is "forty billion, six hundred seventy-nine million, one hundred ninety-one thousand, seven hundred eighty-eight".