40430601551 has 2 divisors, whose sum is σ = 40430601552. Its totient is φ = 40430601550.

The previous prime is 40430601539. The next prime is 40430601671. The reversal of 40430601551 is 15510603404.

It is a happy number.

40430601551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40430601551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40430601851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215300775 + 20215300776.

It is an arithmetic number, because the mean of its divisors is an integer number (20215300776).

Almost surely, 2^40430601551 is an apocalyptic number.

40430601551 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430601551 is an equidigital number, since it uses as much as digits as its factorization.

40430601551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 40430601551 in words is "forty billion, four hundred thirty million, six hundred one thousand, five hundred fifty-one".