40108154807801 has 2 divisors, whose sum is σ = 40108154807802. Its totient is φ = 40108154807800.

The previous prime is 40108154807719. The next prime is 40108154807837. The reversal of 40108154807801 is 10870845180104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26622514409401 + 13485640398400 = 5159701^2 + 3672280^2 .

It is a cyclic number.

It is not a de Polignac number, because 40108154807801 - 2³⁰ = 40107081065977 is a prime.

It is not a weakly prime, because it can be changed into another prime (40108154807891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20054077403900 + 20054077403901.

It is an arithmetic number, because the mean of its divisors is an integer number (20054077403901).

Almost surely, 2^{40108154807801} is an apocalyptic number.

It is an amenable number.

40108154807801 is a deficient number, since it is larger than the sum of its proper divisors (1).

40108154807801 is an equidigital number, since it uses as much as digits as its factorization.

40108154807801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 286720, while the sum is 47.

Adding to 40108154807801 its reverse (10870845180104), we get a palindrome (50978999987905).

The spelling of 40108154807801 in words is "forty trillion, one hundred eight billion, one hundred fifty-four million, eight hundred seven thousand, eight hundred one".