774006345551 has 4 divisors (see below), whose sum is σ = 774022615392. Its totient is φ = 773990075712.

The previous prime is 774006345491. The next prime is 774006345557. The reversal of 774006345551 is 155543600477.

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 774006345551 - 2⁶ = 774006345487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 774006345496 and 774006345505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774006345557) 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, 8063351 + ... + 8158776.

It is an arithmetic number, because the mean of its divisors is an integer number (193505653848).

Almost surely, 2^774006345551 is an apocalyptic number.

774006345551 is a deficient number, since it is larger than the sum of its proper divisors (16269841).

774006345551 is a wasteful number, since it uses less digits than its factorization.

774006345551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16269840.

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 774006345551 in words is "seven hundred seventy-four billion, six million, three hundred forty-five thousand, five hundred fifty-one".