40157773723 has 2 divisors, whose sum is σ = 40157773724. Its totient is φ = 40157773722.

The previous prime is 40157773709. The next prime is 40157773727. The reversal of 40157773723 is 32737775104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40157773723 is a prime.

It is a super-2 number, since 2×40157773723² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40157773727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078886861 + 20078886862.

It is an arithmetic number, because the mean of its divisors is an integer number (20078886862).

Almost surely, 2^40157773723 is an apocalyptic number.

40157773723 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157773723 is an equidigital number, since it uses as much as digits as its factorization.

40157773723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864360, while the sum is 46.

The spelling of 40157773723 in words is "forty billion, one hundred fifty-seven million, seven hundred seventy-three thousand, seven hundred twenty-three".