40091347791040 has 112 divisors (see below), whose sum is σ = 117498488611392. Its totient is φ = 12688250720256.

The previous prime is 40091347790999. The next prime is 40091347791071. The reversal of 40091347791040 is 4019774319004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688352539 + ... + 688410778.

It is an arithmetic number, because the mean of its divisors is an integer number (1049093648316).

Almost surely, 2^{40091347791040} is an apocalyptic number.

40091347791040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40091347791040 is an abundant number, since it is smaller than the sum of its proper divisors (77407140820352).

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

40091347791040 is a wasteful number, since it uses less digits than its factorization.

40091347791040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376763354 (or 1376763344 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 40091347791040 in words is "forty trillion, ninety-one billion, three hundred forty-seven million, seven hundred ninety-one thousand, forty".