1012454546444 has 24 divisors (see below), whose sum is σ = 1945840050000. Its totient is φ = 457117974080.

The previous prime is 1012454546443. The next prime is 1012454546459. The reversal of 1012454546444 is 4446454542101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1012454546395 and 1012454546404.

It is not an unprimeable number, because it can be changed into a prime (1012454546443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77209319 + ... + 77222430.

It is an arithmetic number, because the mean of its divisors is an integer number (81076668750).

Almost surely, 2^{1012454546444} is an apocalyptic number.

It is an amenable number.

1012454546444 is a deficient number, since it is larger than the sum of its proper divisors (933385503556).

1012454546444 is a wasteful number, since it uses less digits than its factorization.

1012454546444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154431913 (or 154431911 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 44.

The spelling of 1012454546444 in words is "one trillion, twelve billion, four hundred fifty-four million, five hundred forty-six thousand, four hundred forty-four".