400312965743 has 4 divisors (see below), whose sum is σ = 401870604000.
Its totient is φ = 398755327488.
The previous prime is 400312965737. The next prime is 400312965751. The reversal of 400312965743 is 347569213004.
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 400312965743 - 28 = 400312965487 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 400312965694 and 400312965703.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (400312964743) 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, 778818743 + ... + 778819256.
It is an arithmetic number, because the mean of its divisors is an integer number (100467651000).
Almost surely, 2400312965743 is an apocalyptic number.
400312965743 is a deficient number, since it is larger than the sum of its proper divisors (1557638257).
400312965743 is a wasteful number, since it uses less digits than its factorization.
400312965743 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1557638256.
The product of its (nonzero) digits is 544320, while the sum is 44.
The spelling of 400312965743 in words is "four hundred billion, three hundred twelve million, nine hundred sixty-five thousand, seven hundred forty-three".