40109398911 has 8 divisors (see below), whose sum is σ = 59421331760. Its totient is φ = 26739599256.

The previous prime is 40109398897. The next prime is 40109398921. The reversal of 40109398911 is 11989390104.

It is a de Polignac number, because none of the positive numbers 2^k-40109398911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40109398921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742766620 + ... + 742766673.

It is an arithmetic number, because the mean of its divisors is an integer number (7427666470).

Almost surely, 2^40109398911 is an apocalyptic number.

40109398911 is a deficient number, since it is larger than the sum of its proper divisors (19311932849).

40109398911 is a wasteful number, since it uses less digits than its factorization.

40109398911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485533302 (or 1485533296 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 40109398911 in words is "forty billion, one hundred nine million, three hundred ninety-eight thousand, nine hundred eleven".