4040619655981 has 8 divisors (see below), whose sum is σ = 4072561310720. Its totient is φ = 4008679966368.

The previous prime is 4040619655979. The next prime is 4040619656057. The reversal of 4040619655981 is 1895569160404.

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

It is not a de Polignac number, because 4040619655981 - 2¹ = 4040619655979 is a prime.

It is a super-2 number, since 2×4040619655981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040619655921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3783730 + ... + 4732636.

It is an arithmetic number, because the mean of its divisors is an integer number (509070163840).

Almost surely, 2^{4040619655981} is an apocalyptic number.

It is an amenable number.

4040619655981 is a deficient number, since it is larger than the sum of its proper divisors (31941654739).

4040619655981 is a wasteful number, since it uses less digits than its factorization.

4040619655981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982563.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 4040619655981 in words is "four trillion, forty billion, six hundred nineteen million, six hundred fifty-five thousand, nine hundred eighty-one".