1002542386798 has 16 divisors (see below), whose sum is σ = 1569237092640. Its totient is φ = 479464475776.

The previous prime is 1002542386777. The next prime is 1002542386831. The reversal of 1002542386798 is 8976832452001.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1677186 + ... + 2195002.

It is an arithmetic number, because the mean of its divisors is an integer number (98077318290).

It is a 1-persistent number, because it is pandigital, but 2⋅1002542386798 = 2005084773596 is not.

Almost surely, 2^{1002542386798} is an apocalyptic number.

1002542386798 is a deficient number, since it is larger than the sum of its proper divisors (566694705842).

1002542386798 is a wasteful number, since it uses less digits than its factorization.

1002542386798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559931.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 1002542386798 in words is "one trillion, two billion, five hundred forty-two million, three hundred eighty-six thousand, seven hundred ninety-eight".