40680797184 has 132 divisors (see below), whose sum is σ = 121816216704. Its totient is φ = 13560182784.

The previous prime is 40680797177. The next prime is 40680797189. The reversal of 40680797184 is 48179708604.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 40680797184.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40680797189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167089 + ... + 330575.

Almost surely, 2^40680797184 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40680797184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60908108352).

40680797184 is an abundant number, since it is smaller than the sum of its proper divisors (81135419520).

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

40680797184 is an equidigital number, since it uses as much as digits as its factorization.

40680797184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163522 (or 163492 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 40680797184 in words is "forty billion, six hundred eighty million, seven hundred ninety-seven thousand, one hundred eighty-four".