1061178786 has 16 divisors (see below), whose sum is σ = 2358175200. Its totient is φ = 353726244.

The previous prime is 1061178757. The next prime is 1061178787. The reversal of 1061178786 is 6878711601.

It is a happy number.

It is a super-2 number, since 2×1061178786² = 2252200831712867592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1061178787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9825676 + ... + 9825783.

It is an arithmetic number, because the mean of its divisors is an integer number (147385950).

Almost surely, 2^1061178786 is an apocalyptic number.

1061178786 is an abundant number, since it is smaller than the sum of its proper divisors (1296996414).

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

1061178786 is a wasteful number, since it uses less digits than its factorization.

1061178786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651470 (or 19651464 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 1061178786 is about 32575.7392241527. The cubic root of 1061178786 is about 1019.9906400525.

The spelling of 1061178786 in words is "one billion, sixty-one million, one hundred seventy-eight thousand, seven hundred eighty-six".