1239702797667 has 6 divisors (see below), whose sum is σ = 1652939634892. Its totient is φ = 826467246112.

The previous prime is 1239702797659. The next prime is 1239702797687. The reversal of 1239702797667 is 7667972079321.

It is not a de Polignac number, because 1239702797667 - 2³ = 1239702797659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1239702797598 and 1239702797607.

It is not an unprimeable number, because it can be changed into a prime (1239702797687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1607083 + ... + 2249915.

Almost surely, 2^{1239702797667} is an apocalyptic number.

1239702797667 is a deficient number, since it is larger than the sum of its proper divisors (413236837225).

1239702797667 is an frugal number, since it uses more digits than its factorization.

1239702797667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285669 (or 642836 counting only the distinct ones).

The product of its (nonzero) digits is 84015792, while the sum is 66.

The spelling of 1239702797667 in words is "one trillion, two hundred thirty-nine billion, seven hundred two million, seven hundred ninety-seven thousand, six hundred sixty-seven".