40997687140 has 12 divisors (see below), whose sum is σ = 86095143036. Its totient is φ = 16399074848.

The previous prime is 40997687131. The next prime is 40997687161. The reversal of 40997687140 is 4178679904.

40997687140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17131144996 + 23866542144 = 130886^2 + 154488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024942159 + ... + 1024942198.

It is an arithmetic number, because the mean of its divisors is an integer number (7174595253).

Almost surely, 2^40997687140 is an apocalyptic number.

It is an amenable number.

40997687140 is an abundant number, since it is smaller than the sum of its proper divisors (45097455896).

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

40997687140 is a wasteful number, since it uses less digits than its factorization.

40997687140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049884366 (or 2049884364 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 40997687140 in words is "forty billion, nine hundred ninety-seven million, six hundred eighty-seven thousand, one hundred forty".