1394139192851 has 4 divisors (see below), whose sum is σ = 1398593311992. Its totient is φ = 1389685073712.

The previous prime is 1394139192847. The next prime is 1394139192863. The reversal of 1394139192851 is 1582919314931.

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 1394139192851 - 2² = 1394139192847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394139192841) 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, 2227059101 + ... + 2227059726.

It is an arithmetic number, because the mean of its divisors is an integer number (349648327998).

Almost surely, 2^{1394139192851} is an apocalyptic number.

1394139192851 is a deficient number, since it is larger than the sum of its proper divisors (4454119141).

1394139192851 is an equidigital number, since it uses as much as digits as its factorization.

1394139192851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454119140.

The product of its digits is 2099520, while the sum is 56.

The spelling of 1394139192851 in words is "one trillion, three hundred ninety-four billion, one hundred thirty-nine million, one hundred ninety-two thousand, eight hundred fifty-one".