2540136134900 has 144 divisors (see below), whose sum is σ = 6809918970624. Its totient is φ = 800853765120.

The previous prime is 2540136134881. The next prime is 2540136134923. The reversal of 2540136134900 is 94316310452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1862624 + ... + 2923976.

Almost surely, 2^{2540136134900} is an apocalyptic number.

2540136134900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540136134900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3404959485312).

2540136134900 is an abundant number, since it is smaller than the sum of its proper divisors (4269782835724).

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

2540136134900 is a wasteful number, since it uses less digits than its factorization.

2540136134900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061650 (or 1061643 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 2540136134900 in words is "two trillion, five hundred forty billion, one hundred thirty-six million, one hundred thirty-four thousand, nine hundred".