1020464927890 has 16 divisors (see below), whose sum is σ = 1848105811008. Its totient is φ = 405681762096.

The previous prime is 1020464927869. The next prime is 1020464927891. The reversal of 1020464927890 is 987294640201.

It is not an unprimeable number, because it can be changed into a prime (1020464927891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313024422 + ... + 313027681.

It is an arithmetic number, because the mean of its divisors is an integer number (115506613188).

Almost surely, 2^{1020464927890} is an apocalyptic number.

1020464927890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020464927890 is a deficient number, since it is larger than the sum of its proper divisors (827640883118).

1020464927890 is a wasteful number, since it uses less digits than its factorization.

1020464927890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626052273.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 1020464927890 in words is "one trillion, twenty billion, four hundred sixty-four million, nine hundred twenty-seven thousand, eight hundred ninety".