40401015071 has 2 divisors, whose sum is σ = 40401015072. Its totient is φ = 40401015070.

The previous prime is 40401015037. The next prime is 40401015119. The reversal of 40401015071 is 17051010404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40401015071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401015971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200507535 + 20200507536.

It is an arithmetic number, because the mean of its divisors is an integer number (20200507536).

Almost surely, 2^40401015071 is an apocalyptic number.

40401015071 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401015071 is an equidigital number, since it uses as much as digits as its factorization.

40401015071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 40401015071 its reverse (17051010404), we get a palindrome (57452025475).

The spelling of 40401015071 in words is "forty billion, four hundred one million, fifteen thousand, seventy-one".