2540164138788 has 48 divisors (see below), whose sum is σ = 5986394426880. Its totient is φ = 838245408000.

The previous prime is 2540164138751. The next prime is 2540164138807. The reversal of 2540164138788 is 8878314610452.

2540164138788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2540164138788² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11329048 + ... + 11551088.

It is an arithmetic number, because the mean of its divisors is an integer number (124716550560).

Almost surely, 2^{2540164138788} is an apocalyptic number.

It is an amenable number.

2540164138788 is an abundant number, since it is smaller than the sum of its proper divisors (3446230288092).

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

2540164138788 is a wasteful number, since it uses less digits than its factorization.

2540164138788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231588 (or 231586 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 2540164138788 in words is "two trillion, five hundred forty billion, one hundred sixty-four million, one hundred thirty-eight thousand, seven hundred eighty-eight".