1378177586680 has 64 divisors (see below), whose sum is σ = 3181353991200. Its totient is φ = 537008855040.

The previous prime is 1378177586659. The next prime is 1378177586809. The reversal of 1378177586680 is 866857718731.

It is a super-3 number, since 3×1378177586680³ (a number of 37 digits) contains 333 as substring.

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, 443164 + ... + 1718356.

Almost surely, 2^{1378177586680} is an apocalyptic number.

1378177586680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378177586680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590676995600).

1378177586680 is an abundant number, since it is smaller than the sum of its proper divisors (1803176404520).

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

1378177586680 is a wasteful number, since it uses less digits than its factorization.

1378177586680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275904 (or 1275900 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 67.

The spelling of 1378177586680 in words is "one trillion, three hundred seventy-eight billion, one hundred seventy-seven million, five hundred eighty-six thousand, six hundred eighty".