2544038155628 has 12 divisors (see below), whose sum is σ = 4505706131640. Its totient is φ = 1256693546592.

The previous prime is 2544038155621. The next prime is 2544038155693. The reversal of 2544038155628 is 8265518304452.

It is a super-2 number, since 2×2544038155628² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2544038155628.

It is not an unprimeable number, because it can be changed into a prime (2544038155621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3831382433 + ... + 3831383096.

It is an arithmetic number, because the mean of its divisors is an integer number (375475510970).

Almost surely, 2^{2544038155628} is an apocalyptic number.

It is an amenable number.

2544038155628 is a deficient number, since it is larger than the sum of its proper divisors (1961667976012).

2544038155628 is a wasteful number, since it uses less digits than its factorization.

2544038155628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662765616 (or 7662765614 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 2544038155628 in words is "two trillion, five hundred forty-four billion, thirty-eight million, one hundred fifty-five thousand, six hundred twenty-eight".