40814573857 has 2 divisors, whose sum is σ = 40814573858. Its totient is φ = 40814573856.

The previous prime is 40814573837. The next prime is 40814573869. The reversal of 40814573857 is 75837541804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34076790801 + 6737783056 = 184599^2 + 82084^2 .

It is a cyclic number.

It is not a de Polignac number, because 40814573857 - 2⁷ = 40814573729 is a prime.

It is not a weakly prime, because it can be changed into another prime (40814573837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20407286928 + 20407286929.

It is an arithmetic number, because the mean of its divisors is an integer number (20407286929).

Almost surely, 2^40814573857 is an apocalyptic number.

It is an amenable number.

40814573857 is a deficient number, since it is larger than the sum of its proper divisors (1).

40814573857 is an equidigital number, since it uses as much as digits as its factorization.

40814573857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 40814573857 in words is "forty billion, eight hundred fourteen million, five hundred seventy-three thousand, eight hundred fifty-seven".