40187453827 has 2 divisors, whose sum is σ = 40187453828. Its totient is φ = 40187453826.

The previous prime is 40187453821. The next prime is 40187453861. The reversal of 40187453827 is 72835478104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40187453827 - 2³ = 40187453819 is a prime.

It is not a weakly prime, because it can be changed into another prime (40187453821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20093726913 + 20093726914.

It is an arithmetic number, because the mean of its divisors is an integer number (20093726914).

Almost surely, 2^40187453827 is an apocalyptic number.

40187453827 is a deficient number, since it is larger than the sum of its proper divisors (1).

40187453827 is an equidigital number, since it uses as much as digits as its factorization.

40187453827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 40187453827 in words is "forty billion, one hundred eighty-seven million, four hundred fifty-three thousand, eight hundred twenty-seven".