192540353994 has 128 divisors (see below), whose sum is σ = 437415264000. Its totient is φ = 62768369664.

The previous prime is 192540353977. The next prime is 192540354001. The reversal of 192540353994 is 499353045291.

192540353994 is a `hidden beast` number, since 1 + 9 + 2 + 540 + 3 + 5 + 3 + 9 + 94 = 666.

192540353994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×192540353994² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 192540353994.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 224144337 + ... + 224145195.

It is an arithmetic number, because the mean of its divisors is an integer number (3417306750).

Almost surely, 2^192540353994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 192540353994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218707632000).

192540353994 is an abundant number, since it is smaller than the sum of its proper divisors (244874910006).

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

192540353994 is a wasteful number, since it uses less digits than its factorization.

192540353994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 192540353994 in words is "one hundred ninety-two billion, five hundred forty million, three hundred fifty-three thousand, nine hundred ninety-four".