17649450942 has 16 divisors (see below), whose sum is σ = 35304066432. Its totient is φ = 5882289560.

The previous prime is 17649450941. The next prime is 17649450961. The reversal of 17649450942 is 24905494671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17649450941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170034 + ... + 253397.

It is an arithmetic number, because the mean of its divisors is an integer number (2206504152).

Almost surely, 2^17649450942 is an apocalyptic number.

17649450942 is an abundant number, since it is smaller than the sum of its proper divisors (17654615490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17649450942 is a wasteful number, since it uses less digits than its factorization.

17649450942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430383.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 17649450942 in words is "seventeen billion, six hundred forty-nine million, four hundred fifty thousand, nine hundred forty-two".