7940135194 has 8 divisors (see below), whose sum is σ = 12200695668. Its totient is φ = 3873236640.

The previous prime is 7940135191. The next prime is 7940135263. The reversal of 7940135194 is 4915310497.

It can be written as a sum of positive squares in 2 ways, for example, as 7328216025 + 611919169 = 85605^2 + 24737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7940135194.

It is not an unprimeable number, because it can be changed into a prime (7940135191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48415377 + ... + 48415540.

Almost surely, 2^7940135194 is an apocalyptic number.

7940135194 is a deficient number, since it is larger than the sum of its proper divisors (4260560474).

7940135194 is a wasteful number, since it uses less digits than its factorization.

7940135194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96830960.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 7940135194 is about 89107.4362441205. The cubic root of 7940135194 is about 1994.9987704425.

The spelling of 7940135194 in words is "seven billion, nine hundred forty million, one hundred thirty-five thousand, one hundred ninety-four".