406740733387 has 2 divisors, whose sum is σ = 406740733388. Its totient is φ = 406740733386.

The previous prime is 406740733339. The next prime is 406740733409. The reversal of 406740733387 is 783337047604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406740733387 - 2¹¹ = 406740731339 is a prime.

It is not a weakly prime, because it can be changed into another prime (406740733787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203370366693 + 203370366694.

It is an arithmetic number, because the mean of its divisors is an integer number (203370366694).

Almost surely, 2^406740733387 is an apocalyptic number.

406740733387 is a deficient number, since it is larger than the sum of its proper divisors (1).

406740733387 is an equidigital number, since it uses as much as digits as its factorization.

406740733387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 52.

The spelling of 406740733387 in words is "four hundred six billion, seven hundred forty million, seven hundred thirty-three thousand, three hundred eighty-seven".