412550018638 has 4 divisors (see below), whose sum is σ = 618825027960. Its totient is φ = 206275009318.

The previous prime is 412550018633. The next prime is 412550018641. The reversal of 412550018638 is 836810055214.

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

It is a junction number, because it is equal to n+sod(n) for n = 412550018594 and 412550018603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412550018633) by changing a digit.

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, 103137504658 + ... + 103137504661.

It is an arithmetic number, because the mean of its divisors is an integer number (154706256990).

Almost surely, 2^412550018638 is an apocalyptic number.

412550018638 is a deficient number, since it is larger than the sum of its proper divisors (206275009322).

412550018638 is a wasteful number, since it uses less digits than its factorization.

412550018638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206275009321.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 412550018638 in words is "four hundred twelve billion, five hundred fifty million, eighteen thousand, six hundred thirty-eight".