1377446154456 has 64 divisors (see below), whose sum is σ = 3635127446400. Its totient is φ = 433750699008.

The previous prime is 1377446154407. The next prime is 1377446154479. The reversal of 1377446154456 is 6544516447731.

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

It is a junction number, because it is equal to n+sod(n) for n = 1377446154396 and 1377446154405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4117666 + ... + 4439601.

It is an arithmetic number, because the mean of its divisors is an integer number (56798866350).

Almost surely, 2^{1377446154456} is an apocalyptic number.

It is an amenable number.

1377446154456 is an abundant number, since it is smaller than the sum of its proper divisors (2257681291944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377446154456 is a wasteful number, since it uses less digits than its factorization.

1377446154456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557648 (or 8557644 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 57.

The spelling of 1377446154456 in words is "one trillion, three hundred seventy-seven billion, four hundred forty-six million, one hundred fifty-four thousand, four hundred fifty-six".