1377776808536 has 16 divisors (see below), whose sum is σ = 2583695318400. Its totient is φ = 688791390304.

The previous prime is 1377776808481. The next prime is 1377776808539. The reversal of 1377776808536 is 6358086777731.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377776808539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12066371 + ... + 12180018.

It is an arithmetic number, because the mean of its divisors is an integer number (161480957400).

Almost surely, 2^{1377776808536} is an apocalyptic number.

It is an amenable number.

1377776808536 is a deficient number, since it is larger than the sum of its proper divisors (1205918509864).

1377776808536 is a wasteful number, since it uses less digits than its factorization.

1377776808536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24253498 (or 24253494 counting only the distinct ones).

The product of its (nonzero) digits is 248935680, while the sum is 68.

The spelling of 1377776808536 in words is "one trillion, three hundred seventy-seven billion, seven hundred seventy-six million, eight hundred eight thousand, five hundred thirty-six".