40947220361 has 4 divisors (see below), whose sum is σ = 41050362372. Its totient is φ = 40844078352.

The previous prime is 40947220351. The next prime is 40947220373. The reversal of 40947220361 is 16302274904.

40947220361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24475038025 + 16472182336 = 156445^2 + 128344^2 .

It is a cyclic number.

It is not a de Polignac number, because 40947220361 - 2²² = 40943026057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40947220351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51570410 + ... + 51571203.

It is an arithmetic number, because the mean of its divisors is an integer number (10262590593).

Almost surely, 2^40947220361 is an apocalyptic number.

It is an amenable number.

40947220361 is a deficient number, since it is larger than the sum of its proper divisors (103142011).

40947220361 is a wasteful number, since it uses less digits than its factorization.

40947220361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103142010.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 40947220361 in words is "forty billion, nine hundred forty-seven million, two hundred twenty thousand, three hundred sixty-one".