387783276660 has 960 divisors, whose sum is σ = 1476349459200. Its totient is φ = 84168916992.

The previous prime is 387783276653. The next prime is 387783276701. The reversal of 387783276660 is 66672387783.

It is a super-2 number, since 2×387783276660² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 741459159 + ... + 741459681.

It is an arithmetic number, because the mean of its divisors is an integer number (1537864020).

Almost surely, 2^387783276660 is an apocalyptic number.

387783276660 is a gapful number since it is divisible by the number (30) 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 387783276660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738174729600).

387783276660 is an abundant number, since it is smaller than the sum of its proper divisors (1088566182540).

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

387783276660 is a wasteful number, since it uses less digits than its factorization.

387783276660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 63.

The spelling of 387783276660 in words is "three hundred eighty-seven billion, seven hundred eighty-three million, two hundred seventy-six thousand, six hundred sixty".