2540426240452 has 6 divisors (see below), whose sum is σ = 4445745920798. Its totient is φ = 1270213120224.

The previous prime is 2540426240449. The next prime is 2540426240497.

2540426240452 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 2004110223556 + 536316016896 = 1415666^2 + 732336^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317553280053 + ... + 317553280060.

Almost surely, 2^{2540426240452} is an apocalyptic number.

It is an amenable number.

2540426240452 is a deficient number, since it is larger than the sum of its proper divisors (1905319680346).

2540426240452 is a wasteful number, since it uses less digits than its factorization.

2540426240452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635106560117 (or 635106560115 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

The spelling of 2540426240452 in words is "two trillion, five hundred forty billion, four hundred twenty-six million, two hundred forty thousand, four hundred fifty-two".