163863492742 has 16 divisors (see below), whose sum is σ = 250445850480. Its totient is φ = 80381702752.

The previous prime is 163863492703. The next prime is 163863492757. The reversal of 163863492742 is 247294368361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3429009 + ... + 3476467.

It is an arithmetic number, because the mean of its divisors is an integer number (15652865655).

Almost surely, 2^163863492742 is an apocalyptic number.

163863492742 is a deficient number, since it is larger than the sum of its proper divisors (86582357738).

163863492742 is a wasteful number, since it uses less digits than its factorization.

163863492742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80087.

The product of its digits is 10450944, while the sum is 55.

The spelling of 163863492742 in words is "one hundred sixty-three billion, eight hundred sixty-three million, four hundred ninety-two thousand, seven hundred forty-two".