1003398507678 has 16 divisors (see below), whose sum is σ = 2293482303360. Its totient is φ = 286685287896.

The previous prime is 1003398507667. The next prime is 1003398507697. The reversal of 1003398507678 is 8767058933001.

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, 11945220288 + ... + 11945220371.

It is an arithmetic number, because the mean of its divisors is an integer number (143342643960).

Almost surely, 2^{1003398507678} is an apocalyptic number.

1003398507678 is an abundant number, since it is smaller than the sum of its proper divisors (1290083795682).

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

1003398507678 is a wasteful number, since it uses less digits than its factorization.

1003398507678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23890440671.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 1003398507678 in words is "one trillion, three billion, three hundred ninety-eight million, five hundred seven thousand, six hundred seventy-eight".