1226345644725 has 48 divisors (see below), whose sum is σ = 2048751740544. Its totient is φ = 647232768000.

The previous prime is 1226345644709. The next prime is 1226345644729. The reversal of 1226345644725 is 5274465436221.

It is not a de Polignac number, because 1226345644725 - 2⁴ = 1226345644709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226345644729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5233065 + ... + 5462385.

It is an arithmetic number, because the mean of its divisors is an integer number (42682327928).

Almost surely, 2^{1226345644725} is an apocalyptic number.

1226345644725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226345644725 is a deficient number, since it is larger than the sum of its proper divisors (822406095819).

1226345644725 is a wasteful number, since it uses less digits than its factorization.

1226345644725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230078 (or 230073 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 51.

The spelling of 1226345644725 in words is "one trillion, two hundred twenty-six billion, three hundred forty-five million, six hundred forty-four thousand, seven hundred twenty-five".