40106930991 has 8 divisors (see below), whose sum is σ = 54484887600. Its totient is φ = 26233464192.

The previous prime is 40106930953. The next prime is 40106930999. The reversal of 40106930991 is 19903960104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40106930991 - 2²³ = 40098542383 is a prime.

It is a super-3 number, since 3×40106930991³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40106930999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126122266 + ... + 126122583.

It is an arithmetic number, because the mean of its divisors is an integer number (6810610950).

Almost surely, 2^40106930991 is an apocalyptic number.

40106930991 is a deficient number, since it is larger than the sum of its proper divisors (14377956609).

40106930991 is a wasteful number, since it uses less digits than its factorization.

40106930991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252244905.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 40106930991 in words is "forty billion, one hundred six million, nine hundred thirty thousand, nine hundred ninety-one".