40262858491 has 2 divisors, whose sum is σ = 40262858492. Its totient is φ = 40262858490.

The previous prime is 40262858437. The next prime is 40262858501. The reversal of 40262858491 is 19485826204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40262858491 - 2²¹ = 40260761339 is a prime.

It is not a weakly prime, because it can be changed into another prime (40262858401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20131429245 + 20131429246.

It is an arithmetic number, because the mean of its divisors is an integer number (20131429246).

Almost surely, 2^40262858491 is an apocalyptic number.

40262858491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40262858491 is an equidigital number, since it uses as much as digits as its factorization.

40262858491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 40262858491 in words is "forty billion, two hundred sixty-two million, eight hundred fifty-eight thousand, four hundred ninety-one".