40475536957 has 2 divisors, whose sum is σ = 40475536958. Its totient is φ = 40475536956.

The previous prime is 40475536949. The next prime is 40475536993. The reversal of 40475536957 is 75963557404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25860177721 + 14615359236 = 160811^2 + 120894^2 .

It is a cyclic number.

It is not a de Polignac number, because 40475536957 - 2³ = 40475536949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40475536898 and 40475536907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40475537957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20237768478 + 20237768479.

It is an arithmetic number, because the mean of its divisors is an integer number (20237768479).

Almost surely, 2^40475536957 is an apocalyptic number.

It is an amenable number.

40475536957 is a deficient number, since it is larger than the sum of its proper divisors (1).

40475536957 is an equidigital number, since it uses as much as digits as its factorization.

40475536957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 40475536957 in words is "forty billion, four hundred seventy-five million, five hundred thirty-six thousand, nine hundred fifty-seven".