40899474919 has 2 divisors, whose sum is σ = 40899474920. Its totient is φ = 40899474918.

The previous prime is 40899474893. The next prime is 40899474961. The reversal of 40899474919 is 91947499804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40899474919 - 2²¹ = 40897377767 is a prime.

It is a super-2 number, since 2×40899474919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40899474419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20449737459 + 20449737460.

It is an arithmetic number, because the mean of its divisors is an integer number (20449737460).

Almost surely, 2^40899474919 is an apocalyptic number.

40899474919 is a deficient number, since it is larger than the sum of its proper divisors (1).

40899474919 is an equidigital number, since it uses as much as digits as its factorization.

40899474919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 40899474919 in words is "forty billion, eight hundred ninety-nine million, four hundred seventy-four thousand, nine hundred nineteen".