1434772772621 has 4 divisors (see below), whose sum is σ = 1450893815100.
Its totient is φ = 1418651730144.
The previous prime is 1434772772557. The next prime is 1434772772663. The reversal of 1434772772621 is 1262772774341.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 508491643396 + 926281129225 = 713086^2 + 962435^2
It is a cyclic number.
It is not a de Polignac number, because 1434772772621 - 26 = 1434772772557 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1434772772821) 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, 8060521106 + ... + 8060521283.
It is an arithmetic number, because the mean of its divisors is an integer number (362723453775).
Almost surely, 21434772772621 is an apocalyptic number.
It is an amenable number.
1434772772621 is a deficient number, since it is larger than the sum of its proper divisors (16121042479).
1434772772621 is an equidigital number, since it uses as much as digits as its factorization.
1434772772621 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16121042478.
The product of its digits is 5531904, while the sum is 53.
The spelling of 1434772772621 in words is "one trillion, four hundred thirty-four billion, seven hundred seventy-two million, seven hundred seventy-two thousand, six hundred twenty-one".