1377640137764 has 72 divisors (see below), whose sum is σ = 2762534224128. Its totient is φ = 599999400000.

The previous prime is 1377640137701. The next prime is 1377640137779. The reversal of 1377640137764 is 4677310467731.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1060859 + ... + 1969949.

Almost surely, 2^{1377640137764} is an apocalyptic number.

It is an amenable number.

1377640137764 is an abundant number, since it is smaller than the sum of its proper divisors (1384894086364).

1377640137764 is a wasteful number, since it uses less digits than its factorization.

1377640137764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909249 (or 909236 counting only the distinct ones).

The product of its (nonzero) digits is 12446784, while the sum is 56.

The spelling of 1377640137764 in words is "one trillion, three hundred seventy-seven billion, six hundred forty million, one hundred thirty-seven thousand, seven hundred sixty-four".