1227770086845 has 64 divisors (see below), whose sum is σ = 2076885780480. Its totient is φ = 617631775488.

The previous prime is 1227770086817. The next prime is 1227770086973. The reversal of 1227770086845 is 5486800777221.

It is not a de Polignac number, because 1227770086845 - 2¹⁰ = 1227770085821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117070192 + ... + 117080678.

It is an arithmetic number, because the mean of its divisors is an integer number (32451340320).

Almost surely, 2^{1227770086845} is an apocalyptic number.

1227770086845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1227770086845 is a deficient number, since it is larger than the sum of its proper divisors (849115693635).

1227770086845 is a wasteful number, since it uses less digits than its factorization.

1227770086845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274.

The product of its (nonzero) digits is 10536960, while the sum is 57.

The spelling of 1227770086845 in words is "one trillion, two hundred twenty-seven billion, seven hundred seventy million, eighty-six thousand, eight hundred forty-five".