1351220587770 has 16 divisors (see below), whose sum is σ = 3242929410720. Its totient is φ = 360325490064.

The previous prime is 1351220587751. The next prime is 1351220587771. The reversal of 1351220587770 is 777850221531.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1351220587771) 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, 22520343100 + ... + 22520343159.

It is an arithmetic number, because the mean of its divisors is an integer number (202683088170).

Almost surely, 2^{1351220587770} is an apocalyptic number.

1351220587770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1351220587770 is an abundant number, since it is smaller than the sum of its proper divisors (1891708822950).

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

1351220587770 is a wasteful number, since it uses less digits than its factorization.

1351220587770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45040686269.

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 1351220587770 in words is "one trillion, three hundred fifty-one billion, two hundred twenty million, five hundred eighty-seven thousand, seven hundred seventy".