1478226769664 has 36 divisors (see below), whose sum is σ = 2954650900656. Its totient is φ = 738118520832.

The previous prime is 1478226769633. The next prime is 1478226769681. The reversal of 1478226769664 is 4669676228741.

It is a junction number, because it is equal to n+sod(n) for n = 1478226769594 and 1478226769603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3695609 + ... + 4076024.

Almost surely, 2^{1478226769664} is an apocalyptic number.

It is an amenable number.

1478226769664 is a deficient number, since it is larger than the sum of its proper divisors (1476424130992).

1478226769664 is an frugal number, since it uses more digits than its factorization.

1478226769664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7772392 (or 7772378 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 68.

The spelling of 1478226769664 in words is "one trillion, four hundred seventy-eight billion, two hundred twenty-six million, seven hundred sixty-nine thousand, six hundred sixty-four".