1228376495488 has 16 divisors (see below), whose sum is σ = 2447156299860. Its totient is φ = 614188247680.

The previous prime is 1228376495483. The next prime is 1228376495561. The reversal of 1228376495488 is 8845946738221.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228376495483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4798345558 + ... + 4798345813.

Almost surely, 2^{1228376495488} is an apocalyptic number.

It is an amenable number.

1228376495488 is a deficient number, since it is larger than the sum of its proper divisors (1218779804372).

1228376495488 is an frugal number, since it uses more digits than its factorization.

1228376495488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596691385 (or 9596691373 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 67.

The spelling of 1228376495488 in words is "one trillion, two hundred twenty-eight billion, three hundred seventy-six million, four hundred ninety-five thousand, four hundred eighty-eight".