40626030491 has 2 divisors, whose sum is σ = 40626030492. Its totient is φ = 40626030490.

The previous prime is 40626030479. The next prime is 40626030509. The reversal of 40626030491 is 19403062604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40626030491 - 2¹⁰ = 40626029467 is a prime.

It is not a weakly prime, because it can be changed into another prime (40626030461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20313015245 + 20313015246.

It is an arithmetic number, because the mean of its divisors is an integer number (20313015246).

Almost surely, 2^40626030491 is an apocalyptic number.

40626030491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40626030491 is an equidigital number, since it uses as much as digits as its factorization.

40626030491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 40626030491 in words is "forty billion, six hundred twenty-six million, thirty thousand, four hundred ninety-one".