1016794878372 has 216 divisors, whose sum is σ = 3207344247744. Its totient is φ = 264487638528.

The previous prime is 1016794878371. The next prime is 1016794878389. The reversal of 1016794878372 is 2738784976101.

1016794878372 is a `hidden beast` number, since 1 + 0 + 1 + 6 + 7 + 9 + 487 + 83 + 72 = 666.

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 Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1016794878371) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17428683 + ... + 17486925.

Almost surely, 2^{1016794878372} is an apocalyptic number.

1016794878372 is a gapful number since it is divisible by the number (12) 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 1016794878372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1603672123872).

1016794878372 is an abundant number, since it is smaller than the sum of its proper divisors (2190549369372).

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

1016794878372 is a wasteful number, since it uses less digits than its factorization.

1016794878372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58419 (or 58341 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 1016794878372 in words is "one trillion, sixteen billion, seven hundred ninety-four million, eight hundred seventy-eight thousand, three hundred seventy-two".