406946983537 has 2 divisors, whose sum is σ = 406946983538. Its totient is φ = 406946983536.

The previous prime is 406946983397. The next prime is 406946983591. The reversal of 406946983537 is 735389649604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231131139121 + 175815844416 = 480761^2 + 419304^2 .

It is a cyclic number.

It is not a de Polignac number, because 406946983537 - 2¹¹ = 406946981489 is a prime.

It is not a weakly prime, because it can be changed into another prime (406946983237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203473491768 + 203473491769.

It is an arithmetic number, because the mean of its divisors is an integer number (203473491769).

Almost surely, 2^406946983537 is an apocalyptic number.

It is an amenable number.

406946983537 is a deficient number, since it is larger than the sum of its proper divisors (1).

406946983537 is an equidigital number, since it uses as much as digits as its factorization.

406946983537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117573120, while the sum is 64.

The spelling of 406946983537 in words is "four hundred six billion, nine hundred forty-six million, nine hundred eighty-three thousand, five hundred thirty-seven".