194040103478952 has 128 divisors (see below), whose sum is σ = 540677511475200. Its totient is φ = 57670456163328.

The previous prime is 194040103478951. The next prime is 194040103478993. The reversal of 194040103478952 is 259874301040491.

194040103478952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 194040103478892 and 194040103478901.

It is not an unprimeable number, because it can be changed into a prime (194040103478951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 619251423 + ... + 619564689.

It is an arithmetic number, because the mean of its divisors is an integer number (4224043058400).

Almost surely, 2^{194040103478952} is an apocalyptic number.

194040103478952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194040103478952 is an abundant number, since it is smaller than the sum of its proper divisors (346637407996248).

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

194040103478952 is a wasteful number, since it uses less digits than its factorization.

194040103478952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393215 (or 393211 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 194040103478952 in words is "one hundred ninety-four trillion, forty billion, one hundred three million, four hundred seventy-eight thousand, nine hundred fifty-two".