406950767638 has 4 divisors (see below), whose sum is σ = 610426151460. Its totient is φ = 203475383818.

The previous prime is 406950767623. The next prime is 406950767647. The reversal of 406950767638 is 836767059604.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101737691908 + ... + 101737691911.

It is an arithmetic number, because the mean of its divisors is an integer number (152606537865).

Almost surely, 2^406950767638 is an apocalyptic number.

406950767638 is a deficient number, since it is larger than the sum of its proper divisors (203475383822).

406950767638 is a wasteful number, since it uses less digits than its factorization.

406950767638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203475383821.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 406950767638 in words is "four hundred six billion, nine hundred fifty million, seven hundred sixty-seven thousand, six hundred thirty-eight".