40178903013 has 16 divisors (see below), whose sum is σ = 59580339840. Its totient is φ = 26760717792.

The previous prime is 40178903003. The next prime is 40178903077. The reversal of 40178903013 is 31030987104.

It is a happy number.

It is not a de Polignac number, because 40178903013 - 2⁶ = 40178902949 is a prime.

It is a super-2 number, since 2×40178903013² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40178903003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671256 + ... + 728657.

It is an arithmetic number, because the mean of its divisors is an integer number (3723771240).

Almost surely, 2^40178903013 is an apocalyptic number.

It is an amenable number.

40178903013 is a deficient number, since it is larger than the sum of its proper divisors (19401436827).

40178903013 is a wasteful number, since it uses less digits than its factorization.

40178903013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400985 (or 1400979 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 40178903013 in words is "forty billion, one hundred seventy-eight million, nine hundred three thousand, thirteen".