40631671236 has 48 divisors (see below), whose sum is σ = 108105992064. Its totient is φ = 11766637056.

The previous prime is 40631671229. The next prime is 40631671237. The reversal of 40631671236 is 63217613604.

40631671236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 40631671194 and 40631671203.

It is not an unprimeable number, because it can be changed into a prime (40631671237) 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, 7657920 + ... + 7663223.

It is an arithmetic number, because the mean of its divisors is an integer number (2252208168).

Almost surely, 2^40631671236 is an apocalyptic number.

It is an amenable number.

40631671236 is an abundant number, since it is smaller than the sum of its proper divisors (67474320828).

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

40631671236 is a wasteful number, since it uses less digits than its factorization.

40631671236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15321180 (or 15321178 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 40631671236 in words is "forty billion, six hundred thirty-one million, six hundred seventy-one thousand, two hundred thirty-six".