43477940953 has 2 divisors, whose sum is σ = 43477940954. Its totient is φ = 43477940952.

The previous prime is 43477940887. The next prime is 43477940983. The reversal of 43477940953 is 35904977434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42007371849 + 1470569104 = 204957^2 + 38348^2 .

It is a cyclic number.

It is not a de Polignac number, because 43477940953 - 2²⁹ = 42941070041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43477940894 and 43477940903.

It is not a weakly prime, because it can be changed into another prime (43477940983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21738970476 + 21738970477.

It is an arithmetic number, because the mean of its divisors is an integer number (21738970477).

Almost surely, 2^43477940953 is an apocalyptic number.

It is an amenable number.

43477940953 is a deficient number, since it is larger than the sum of its proper divisors (1).

43477940953 is an equidigital number, since it uses as much as digits as its factorization.

43477940953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 43477940953 in words is "forty-three billion, four hundred seventy-seven million, nine hundred forty thousand, nine hundred fifty-three".