1397833748774 has 4 divisors (see below), whose sum is σ = 2096750623164. Its totient is φ = 698916874386.

The previous prime is 1397833748687. The next prime is 1397833748813. The reversal of 1397833748774 is 4778473387931.

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

It is a junction number, because it is equal to n+sod(n) for n = 1397833748698 and 1397833748707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349458437192 + ... + 349458437195.

It is an arithmetic number, because the mean of its divisors is an integer number (524187655791).

Almost surely, 2^{1397833748774} is an apocalyptic number.

1397833748774 is a deficient number, since it is larger than the sum of its proper divisors (698916874390).

1397833748774 is an equidigital number, since it uses as much as digits as its factorization.

1397833748774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698916874389.

The product of its digits is 597445632, while the sum is 71.

The spelling of 1397833748774 in words is "one trillion, three hundred ninety-seven billion, eight hundred thirty-three million, seven hundred forty-eight thousand, seven hundred seventy-four".