40781481074 has 8 divisors (see below), whose sum is σ = 62085240048. Its totient is φ = 20086401060.

The previous prime is 40781481073. The next prime is 40781481077. The reversal of 40781481074 is 47018418704.

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

It is a super-3 number, since 3×40781481074³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40781481073) 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, 152169572 + ... + 152169839.

It is an arithmetic number, because the mean of its divisors is an integer number (7760655006).

Almost surely, 2^40781481074 is an apocalyptic number.

40781481074 is a deficient number, since it is larger than the sum of its proper divisors (21303758974).

40781481074 is a wasteful number, since it uses less digits than its factorization.

40781481074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304339480.

The product of its (nonzero) digits is 200704, while the sum is 44.

Adding to 40781481074 its reverse (47018418704), we get a palindrome (87799899778).

The spelling of 40781481074 in words is "forty billion, seven hundred eighty-one million, four hundred eighty-one thousand, seventy-four".