40765031998 has 4 divisors (see below), whose sum is σ = 61147548000. Its totient is φ = 20382515998.

The previous prime is 40765031987. The next prime is 40765032001. The reversal of 40765031998 is 89913056704.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10191257998 + ... + 10191258001.

It is an arithmetic number, because the mean of its divisors is an integer number (15286887000).

Almost surely, 2^40765031998 is an apocalyptic number.

40765031998 is a deficient number, since it is larger than the sum of its proper divisors (20382516002).

40765031998 is a wasteful number, since it uses less digits than its factorization.

40765031998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20382516001.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 40765031998 in words is "forty billion, seven hundred sixty-five million, thirty-one thousand, nine hundred ninety-eight".