40577843401 has 2 divisors, whose sum is σ = 40577843402. Its totient is φ = 40577843400.

The previous prime is 40577843399. The next prime is 40577843407. The reversal of 40577843401 is 10434877504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20851360000 + 19726483401 = 144400^2 + 140451^2 .

It is a cyclic number.

It is not a de Polignac number, because 40577843401 - 2¹ = 40577843399 is a prime.

It is a super-2 number, since 2×40577843401² (a number of 22 digits) contains 22 as substring.

Together with 40577843399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40577843407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20288921700 + 20288921701.

It is an arithmetic number, because the mean of its divisors is an integer number (20288921701).

Almost surely, 2^40577843401 is an apocalyptic number.

It is an amenable number.

40577843401 is a deficient number, since it is larger than the sum of its proper divisors (1).

40577843401 is an equidigital number, since it uses as much as digits as its factorization.

40577843401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 40577843401 in words is "forty billion, five hundred seventy-seven million, eight hundred forty-three thousand, four hundred one".