1028373377091 has 8 divisors (see below), whose sum is σ = 1371177558864. Its totient is φ = 685575723360.

The previous prime is 1028373377089. The next prime is 1028373377099. The reversal of 1028373377091 is 1907733738201.

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

It is not a de Polignac number, because 1028373377091 - 2¹ = 1028373377089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1028373377099) 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 7 ways as a sum of consecutive naturals, for example, 1251780 + ... + 1903601.

It is an arithmetic number, because the mean of its divisors is an integer number (171397194858).

Almost surely, 2^{1028373377091} is an apocalyptic number.

1028373377091 is a deficient number, since it is larger than the sum of its proper divisors (342804181773).

1028373377091 is a wasteful number, since it uses less digits than its factorization.

1028373377091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264021.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 1028373377091 in words is "one trillion, twenty-eight billion, three hundred seventy-three million, three hundred seventy-seven thousand, ninety-one".