40956191972 has 6 divisors (see below), whose sum is σ = 71673335958. Its totient is φ = 20478095984.

The previous prime is 40956191953. The next prime is 40956191987. The reversal of 40956191972 is 27919165904.

It can be written as a sum of positive squares in only one way, i.e., 26576824576 + 14379367396 = 163024^2 + 119914^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5119523993 + ... + 5119524000.

It is an arithmetic number, because the mean of its divisors is an integer number (11945555993).

Almost surely, 2^40956191972 is an apocalyptic number.

It is an amenable number.

40956191972 is a deficient number, since it is larger than the sum of its proper divisors (30717143986).

40956191972 is a wasteful number, since it uses less digits than its factorization.

40956191972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239047997 (or 10239047995 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 40956191972 in words is "forty billion, nine hundred fifty-six million, one hundred ninety-one thousand, nine hundred seventy-two".