1377801896428 has 6 divisors (see below), whose sum is σ = 2411153318756. Its totient is φ = 688900948212.

The previous prime is 1377801896407. The next prime is 1377801896431. The reversal of 1377801896428 is 8246981087731.

It is a self number, because there is not a number n which added to its sum of digits gives 1377801896428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172225237050 + ... + 172225237057.

Almost surely, 2^{1377801896428} is an apocalyptic number.

It is an amenable number.

1377801896428 is a deficient number, since it is larger than the sum of its proper divisors (1033351422328).

1377801896428 is a wasteful number, since it uses less digits than its factorization.

1377801896428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344450474111 (or 344450474109 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 1377801896428 in words is "one trillion, three hundred seventy-seven billion, eight hundred one million, eight hundred ninety-six thousand, four hundred twenty-eight".