4040399918748 has 36 divisors (see below), whose sum is σ = 9689286331032. Its totient is φ = 1310399968320.

The previous prime is 4040399918747. The next prime is 4040399918831. The reversal of 4040399918748 is 8478199930404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040399918747) 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, 122956543 + ... + 122989398.

Almost surely, 2^{4040399918748} is an apocalyptic number.

It is an amenable number.

4040399918748 is an abundant number, since it is smaller than the sum of its proper divisors (5648886412284).

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

4040399918748 is a wasteful number, since it uses less digits than its factorization.

4040399918748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245946022 (or 245945983 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 4040399918748 in words is "four trillion, forty billion, three hundred ninety-nine million, nine hundred eighteen thousand, seven hundred forty-eight".