1540284344454 has 8 divisors (see below), whose sum is σ = 3080568688920. Its totient is φ = 513428114816.

The previous prime is 1540284344449. The next prime is 1540284344479. The reversal of 1540284344454 is 4544434820451.

It is a sphenic number, since it is the product of 3 distinct primes.

1540284344454 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128357028699 + ... + 128357028710.

It is an arithmetic number, because the mean of its divisors is an integer number (385071086115).

Almost surely, 2^{1540284344454} is an apocalyptic number.

1540284344454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1540284344454 is a wasteful number, since it uses less digits than its factorization.

1540284344454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256714057414.

The product of its (nonzero) digits is 4915200, while the sum is 48.

The spelling of 1540284344454 in words is "one trillion, five hundred forty billion, two hundred eighty-four million, three hundred forty-four thousand, four hundred fifty-four".