1353421007776 has 12 divisors (see below), whose sum is σ = 2664547609122. Its totient is φ = 676710503872.

The previous prime is 1353421007773. The next prime is 1353421007777. The reversal of 1353421007776 is 6777001243531.

It can be written as a sum of positive squares in only one way, i.e., 1102239615376 + 251181392400 = 1049876^2 + 501180^2 .

It is not an unprimeable number, because it can be changed into a prime (1353421007773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21147203215 + ... + 21147203278.

Almost surely, 2^{1353421007776} is an apocalyptic number.

1353421007776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1353421007776 is a deficient number, since it is larger than the sum of its proper divisors (1311126601346).

1353421007776 is an equidigital number, since it uses as much as digits as its factorization.

1353421007776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42294406503 (or 42294406495 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 1353421007776 in words is "one trillion, three hundred fifty-three billion, four hundred twenty-one million, seven thousand, seven hundred seventy-six".