1228627131465 has 8 divisors (see below), whose sum is σ = 1965803410368. Its totient is φ = 655267803440.

The previous prime is 1228627131427. The next prime is 1228627131481. The reversal of 1228627131465 is 5641317268221.

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

It is not a de Polignac number, because 1228627131465 - 2¹⁹ = 1228626607177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40954237701 + ... + 40954237730.

It is an arithmetic number, because the mean of its divisors is an integer number (245725426296).

Almost surely, 2^{1228627131465} is an apocalyptic number.

1228627131465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1228627131465 is a deficient number, since it is larger than the sum of its proper divisors (737176278903).

1228627131465 is an equidigital number, since it uses as much as digits as its factorization.

1228627131465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81908475439.

The product of its digits is 967680, while the sum is 48.

The spelling of 1228627131465 in words is "one trillion, two hundred twenty-eight billion, six hundred twenty-seven million, one hundred thirty-one thousand, four hundred sixty-five".