40544135194 has 8 divisors (see below), whose sum is σ = 61813189908. Its totient is φ = 19939738560.

The previous prime is 40544135189. The next prime is 40544135287. The reversal of 40544135194 is 49153144504.

It can be written as a sum of positive squares in 2 ways, for example, as 39705743169 + 838392025 = 199263^2 + 28955^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166164367 + ... + 166164610.

Almost surely, 2^40544135194 is an apocalyptic number.

40544135194 is a deficient number, since it is larger than the sum of its proper divisors (21269054714).

40544135194 is a wasteful number, since it uses less digits than its factorization.

40544135194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332329040.

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 40544135194 its reverse (49153144504), we get a palindrome (89697279698).

The spelling of 40544135194 in words is "forty billion, five hundred forty-four million, one hundred thirty-five thousand, one hundred ninety-four".