1223446745657 has 8 divisors (see below), whose sum is σ = 1285734105216. Its totient is φ = 1162697345712.

The previous prime is 1223446745629. The next prime is 1223446745669. The reversal of 1223446745657 is 7565476443221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223446745657 - 2²⁴ = 1223429968441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223446745357) 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, 384488273 + ... + 384491454.

It is an arithmetic number, because the mean of its divisors is an integer number (160716763152).

Almost surely, 2^{1223446745657} is an apocalyptic number.

It is an amenable number.

1223446745657 is a deficient number, since it is larger than the sum of its proper divisors (62287359559).

1223446745657 is an equidigital number, since it uses as much as digits as its factorization.

1223446745657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768979807.

The product of its digits is 33868800, while the sum is 56.

The spelling of 1223446745657 in words is "one trillion, two hundred twenty-three billion, four hundred forty-six million, seven hundred forty-five thousand, six hundred fifty-seven".