1263498292601 has 2 divisors, whose sum is σ = 1263498292602. Its totient is φ = 1263498292600.

The previous prime is 1263498292577. The next prime is 1263498292627. The reversal of 1263498292601 is 1062928943621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1140942286201 + 122556006400 = 1068149^2 + 350080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263498292601 - 2³⁴ = 1246318423417 is a prime.

It is a super-2 number, since 2×1263498292601² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1263498294601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631749146300 + 631749146301.

It is an arithmetic number, because the mean of its divisors is an integer number (631749146301).

Almost surely, 2^{1263498292601} is an apocalyptic number.

It is an amenable number.

1263498292601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263498292601 is an equidigital number, since it uses as much as digits as its factorization.

1263498292601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 1263498292601 in words is "one trillion, two hundred sixty-three billion, four hundred ninety-eight million, two hundred ninety-two thousand, six hundred one".