1078786946997 has 16 divisors (see below), whose sum is σ = 1598219116480. Its totient is φ = 719183993616.

The previous prime is 1078786946989. The next prime is 1078786946999. The reversal of 1078786946997 is 7996496878701.

1078786946997 is a `hidden beast` number, since 1 + 0 + 7 + 8 + 7 + 8 + 69 + 469 + 97 = 666.

It is not a de Polignac number, because 1078786946997 - 2³ = 1078786946989 is a prime.

It is a super-2 number, since 2×1078786946997² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078786946999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4418943 + ... + 4656675.

It is an arithmetic number, because the mean of its divisors is an integer number (99888694780).

Almost surely, 2^{1078786946997} is an apocalyptic number.

It is an amenable number.

1078786946997 is a deficient number, since it is larger than the sum of its proper divisors (519432169483).

1078786946997 is a wasteful number, since it uses less digits than its factorization.

1078786946997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405809 (or 405803 counting only the distinct ones).

The product of its (nonzero) digits is 2304433152, while the sum is 81.

The spelling of 1078786946997 in words is "one trillion, seventy-eight billion, seven hundred eighty-six million, nine hundred forty-six thousand, nine hundred ninety-seven".