1377761660860 has 96 divisors (see below), whose sum is σ = 3320162274240. Its totient is φ = 475737919488.

The previous prime is 1377761660819. The next prime is 1377761660917. The reversal of 1377761660860 is 680661677731.

It is a junction number, because it is equal to n+sod(n) for n = 1377761660795 and 1377761660804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298770 + ... + 1686649.

It is an arithmetic number, because the mean of its divisors is an integer number (34585023690).

Almost surely, 2^{1377761660860} is an apocalyptic number.

1377761660860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377761660860 is an abundant number, since it is smaller than the sum of its proper divisors (1942400613380).

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

1377761660860 is a wasteful number, since it uses less digits than its factorization.

1377761660860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985615 (or 1985613 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 1377761660860 in words is "one trillion, three hundred seventy-seven billion, seven hundred sixty-one million, six hundred sixty thousand, eight hundred sixty".