40771247205 has 32 divisors (see below), whose sum is σ = 70261712640. Its totient is φ = 20069222400.

The previous prime is 40771247201. The next prime is 40771247207. The reversal of 40771247205 is 50274217704.

It is not a de Polignac number, because 40771247205 - 2² = 40771247201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40771247201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2794680 + ... + 2809230.

It is an arithmetic number, because the mean of its divisors is an integer number (2195678520).

Almost surely, 2^40771247205 is an apocalyptic number.

It is an amenable number.

40771247205 is a deficient number, since it is larger than the sum of its proper divisors (29490465435).

40771247205 is a wasteful number, since it uses less digits than its factorization.

40771247205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28941.

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 40771247205 in words is "forty billion, seven hundred seventy-one million, two hundred forty-seven thousand, two hundred five".