1456421446623 has 128 divisors (see below), whose sum is σ = 2343504006144. Its totient is φ = 792995328000.

The previous prime is 1456421446619. The next prime is 1456421446691. The reversal of 1456421446623 is 3266441246541.

It is not a de Polignac number, because 1456421446623 - 2² = 1456421446619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456421446723) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 635158665 + ... + 635160957.

It is an arithmetic number, because the mean of its divisors is an integer number (18308625048).

Almost surely, 2^{1456421446623} is an apocalyptic number.

1456421446623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1456421446623 is a deficient number, since it is larger than the sum of its proper divisors (887082559521).

1456421446623 is a wasteful number, since it uses less digits than its factorization.

1456421446623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665.

The product of its digits is 3317760, while the sum is 48.

The spelling of 1456421446623 in words is "one trillion, four hundred fifty-six billion, four hundred twenty-one million, four hundred forty-six thousand, six hundred twenty-three".