40740692891 has 8 divisors (see below), whose sum is σ = 43042259520. Its totient is φ = 38498907328.

The previous prime is 40740692849. The next prime is 40740692903. The reversal of 40740692891 is 19829604704.

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

It is a cyclic number.

It is not a de Polignac number, because 40740692891 - 2⁶ = 40740692827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40740692591) 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, 14943866 + ... + 14946591.

It is an arithmetic number, because the mean of its divisors is an integer number (5380282440).

Almost surely, 2^40740692891 is an apocalyptic number.

40740692891 is a deficient number, since it is larger than the sum of its proper divisors (2301566629).

40740692891 is a wasteful number, since it uses less digits than its factorization.

40740692891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29890533.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 40740692891 in words is "forty billion, seven hundred forty million, six hundred ninety-two thousand, eight hundred ninety-one".