40699555277 has 2 divisors, whose sum is σ = 40699555278. Its totient is φ = 40699555276.

The previous prime is 40699555229. The next prime is 40699555291. The reversal of 40699555277 is 77255599604.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37192665316 + 3506889961 = 192854^2 + 59219^2 .

It is a cyclic number.

It is not a de Polignac number, because 40699555277 - 2⁸ = 40699555021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40699554277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20349777638 + 20349777639.

It is an arithmetic number, because the mean of its divisors is an integer number (20349777639).

Almost surely, 2^40699555277 is an apocalyptic number.

It is an amenable number.

40699555277 is a deficient number, since it is larger than the sum of its proper divisors (1).

40699555277 is an equidigital number, since it uses as much as digits as its factorization.

40699555277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814000, while the sum is 59.

The spelling of 40699555277 in words is "forty billion, six hundred ninety-nine million, five hundred fifty-five thousand, two hundred seventy-seven".