40131554828077 has 2 divisors, whose sum is σ = 40131554828078. Its totient is φ = 40131554828076.

The previous prime is 40131554828063. The next prime is 40131554828089. The reversal of 40131554828077 is 77082845513104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38292965273161 + 1838589554916 = 6188131^2 + 1355946^2 .

It is a cyclic number.

It is not a de Polignac number, because 40131554828077 - 2¹¹ = 40131554826029 is a prime.

It is a super-2 number, since 2×40131554828077² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40131554828377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065777414038 + 20065777414039.

It is an arithmetic number, because the mean of its divisors is an integer number (20065777414039).

Almost surely, 2^{40131554828077} is an apocalyptic number.

It is an amenable number.

40131554828077 is a deficient number, since it is larger than the sum of its proper divisors (1).

40131554828077 is an equidigital number, since it uses as much as digits as its factorization.

40131554828077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 40131554828077 in words is "forty trillion, one hundred thirty-one billion, five hundred fifty-four million, eight hundred twenty-eight thousand, seventy-seven".