2540257750451 has 4 divisors (see below), whose sum is σ = 2555842153992. Its totient is φ = 2524673346912.

The previous prime is 2540257750423. The next prime is 2540257750501. The reversal of 2540257750451 is 1540577520452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2540257750451 - 2¹⁰ = 2540257749427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2540257750396 and 2540257750405.

It is not an unprimeable number, because it can be changed into a prime (2540257750651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7792201526 + ... + 7792201851.

It is an arithmetic number, because the mean of its divisors is an integer number (638960538498).

Almost surely, 2^{2540257750451} is an apocalyptic number.

2540257750451 is a deficient number, since it is larger than the sum of its proper divisors (15584403541).

2540257750451 is a wasteful number, since it uses less digits than its factorization.

2540257750451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15584403540.

The product of its (nonzero) digits is 1960000, while the sum is 47.

The spelling of 2540257750451 in words is "two trillion, five hundred forty billion, two hundred fifty-seven million, seven hundred fifty thousand, four hundred fifty-one".