1351701261563 has 4 divisors (see below), whose sum is σ = 1351916884560. Its totient is φ = 1351485638568.

The previous prime is 1351701261539. The next prime is 1351701261643. The reversal of 1351701261563 is 3651621071531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1351701261563 - 2¹⁴ = 1351701245179 is a prime.

It is a super-2 number, since 2×1351701261563² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1351701261563.

It is not an unprimeable number, because it can be changed into a prime (1351701161563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107802095 + ... + 107814632.

It is an arithmetic number, because the mean of its divisors is an integer number (337979221140).

Almost surely, 2^{1351701261563} is an apocalyptic number.

1351701261563 is a deficient number, since it is larger than the sum of its proper divisors (215622997).

1351701261563 is an equidigital number, since it uses as much as digits as its factorization.

1351701261563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215622996.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 1351701261563 in words is "one trillion, three hundred fifty-one billion, seven hundred one million, two hundred sixty-one thousand, five hundred sixty-three".