1434772771678 has 8 divisors (see below), whose sum is σ = 2278756755072.
Its totient is φ = 675187186656.
The previous prime is 1434772771667. The next prime is 1434772771687. The reversal of 1434772771678 is 8761772774341.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21099599550 + ... + 21099599617.
It is an arithmetic number, because the mean of its divisors is an integer number (284844594384).
Almost surely, 21434772771678 is an apocalyptic number.
1434772771678 is a deficient number, since it is larger than the sum of its proper divisors (843983983394).
1434772771678 is a wasteful number, since it uses less digits than its factorization.
1434772771678 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42199199186.
The product of its digits is 77446656, while the sum is 64.
The spelling of 1434772771678 in words is "one trillion, four hundred thirty-four billion, seven hundred seventy-two million, seven hundred seventy-one thousand, six hundred seventy-eight".