40061273091 has 16 divisors (see below), whose sum is σ = 61071442944. Its totient is φ = 22882521024.

The previous prime is 40061273051. The next prime is 40061273101. The reversal of 40061273091 is 19037216004.

It is not a de Polignac number, because 40061273091 - 2²⁶ = 39994164227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40061273051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350226 + ... + 450311.

It is an arithmetic number, because the mean of its divisors is an integer number (3816965184).

Almost surely, 2^40061273091 is an apocalyptic number.

40061273091 is a deficient number, since it is larger than the sum of its proper divisors (21010169853).

40061273091 is a wasteful number, since it uses less digits than its factorization.

40061273091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802930.

The product of its (nonzero) digits is 9072, while the sum is 33.

Adding to 40061273091 its reverse (19037216004), we get a palindrome (59098489095).

The spelling of 40061273091 in words is "forty billion, sixty-one million, two hundred seventy-three thousand, ninety-one".