168949353492 has 18 divisors (see below), whose sum is σ = 427066421418. Its totient is φ = 56316451152.

The previous prime is 168949353487. The next prime is 168949353563. The reversal of 168949353492 is 294353949861.

168949353492 is a `hidden beast` number, since 1 + 6 + 8 + 9 + 4 + 9 + 3 + 534 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159541129476 + 9408224016 = 399426^2 + 96996^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2346518763 + ... + 2346518834.

It is an arithmetic number, because the mean of its divisors is an integer number (23725912301).

Almost surely, 2^168949353492 is an apocalyptic number.

168949353492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168949353492 is an abundant number, since it is smaller than the sum of its proper divisors (258117067926).

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

168949353492 is a wasteful number, since it uses less digits than its factorization.

168949353492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693037607 (or 4693037602 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 168949353492 in words is "one hundred sixty-eight billion, nine hundred forty-nine million, three hundred fifty-three thousand, four hundred ninety-two".