40156292797 has 2 divisors, whose sum is σ = 40156292798. Its totient is φ = 40156292796.

The previous prime is 40156292783. The next prime is 40156292809. The reversal of 40156292797 is 79729265104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34419896676 + 5736396121 = 185526^2 + 75739^2 .

It is a cyclic number.

It is not a de Polignac number, because 40156292797 - 2⁷ = 40156292669 is a prime.

It is a super-2 number, since 2×40156292797² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40156292717) by changing a digit.

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, 20078146398 + 20078146399.

It is an arithmetic number, because the mean of its divisors is an integer number (20078146399).

Almost surely, 2^40156292797 is an apocalyptic number.

It is an amenable number.

40156292797 is a deficient number, since it is larger than the sum of its proper divisors (1).

40156292797 is an equidigital number, since it uses as much as digits as its factorization.

40156292797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 40156292797 in words is "forty billion, one hundred fifty-six million, two hundred ninety-two thousand, seven hundred ninety-seven".