2540211012 has 18 divisors (see below), whose sum is σ = 6421089038. Its totient is φ = 846736992.

The previous prime is 2540210989. The next prime is 2540211013. The reversal of 2540211012 is 2101120452.

2540211012 is a `hidden beast` number, since 2 + 540 + 2 + 110 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2306304576 + 233906436 = 48024^2 + 15294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×2540211012³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2540211013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35280673 + ... + 35280744.

Almost surely, 2^2540211012 is an apocalyptic number.

It is an amenable number.

2540211012 is an abundant number, since it is smaller than the sum of its proper divisors (3880878026).

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

2540211012 is a wasteful number, since it uses less digits than its factorization.

2540211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70561427 (or 70561422 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2540211012 is about 50400.5060688878. The cubic root of 2540211012 is about 1364.4467717439.

Adding to 2540211012 its reverse (2101120452), we get a palindrome (4641331464).

The spelling of 2540211012 in words is "two billion, five hundred forty million, two hundred eleven thousand, twelve".