1268470820501 has 4 divisors (see below), whose sum is σ = 1297970141952. Its totient is φ = 1238971499052.

The previous prime is 1268470820473. The next prime is 1268470820537. The reversal of 1268470820501 is 1050280748621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1268470820501 - 2²² = 1268466626197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268470820401) 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, 14749660661 + ... + 14749660746.

It is an arithmetic number, because the mean of its divisors is an integer number (324492535488).

Almost surely, 2^{1268470820501} is an apocalyptic number.

It is an amenable number.

1268470820501 is a deficient number, since it is larger than the sum of its proper divisors (29499321451).

1268470820501 is an equidigital number, since it uses as much as digits as its factorization.

1268470820501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29499321450.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 1268470820501 in words is "one trillion, two hundred sixty-eight billion, four hundred seventy million, eight hundred twenty thousand, five hundred one".