1225562928394 has 16 divisors (see below), whose sum is σ = 2101070595456. Its totient is φ = 525214861200.

The previous prime is 1225562928391. The next prime is 1225562928427. The reversal of 1225562928394 is 4938292655221.

It is not an unprimeable number, because it can be changed into a prime (1225562928391) 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, 1909617 + ... + 2469364.

It is an arithmetic number, because the mean of its divisors is an integer number (131316912216).

Almost surely, 2^{1225562928394} is an apocalyptic number.

1225562928394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1225562928394 is a deficient number, since it is larger than the sum of its proper divisors (875507667062).

1225562928394 is a wasteful number, since it uses less digits than its factorization.

1225562928394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398981.

The product of its digits is 18662400, while the sum is 58.

The spelling of 1225562928394 in words is "one trillion, two hundred twenty-five billion, five hundred sixty-two million, nine hundred twenty-eight thousand, three hundred ninety-four".