40376278429 has 2 divisors, whose sum is σ = 40376278430. Its totient is φ = 40376278428.

The previous prime is 40376278403. The next prime is 40376278447. The reversal of 40376278429 is 92487267304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35823132900 + 4553145529 = 189270^2 + 67477^2 .

It is a cyclic number.

It is not a de Polignac number, because 40376278429 - 2¹⁵ = 40376245661 is a prime.

It is a super-2 number, since 2×40376278429² (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 (40376878429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20188139214 + 20188139215.

It is an arithmetic number, because the mean of its divisors is an integer number (20188139215).

Almost surely, 2^40376278429 is an apocalyptic number.

It is an amenable number.

40376278429 is a deficient number, since it is larger than the sum of its proper divisors (1).

40376278429 is an equidigital number, since it uses as much as digits as its factorization.

40376278429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 40376278429 in words is "forty billion, three hundred seventy-six million, two hundred seventy-eight thousand, four hundred twenty-nine".