10778954634 has 252 divisors, whose sum is σ = 29323959282. Its totient is φ = 2961372960.

The previous prime is 10778954617. The next prime is 10778954689. The reversal of 10778954634 is 43645987701.

10778954634 is a `hidden beast` number, since 10 + 7 + 7 + 89 + 546 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9920757609 + 858197025 = 99603^2 + 29295^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 125 ways as a sum of consecutive naturals, for example, 68655684 + ... + 68655840.

Almost surely, 2^10778954634 is an apocalyptic number.

10778954634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10778954634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14661979641).

10778954634 is an abundant number, since it is smaller than the sum of its proper divisors (18545004648).

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

10778954634 is an equidigital number, since it uses as much as digits as its factorization.

10778954634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 10778954634 in words is "ten billion, seven hundred seventy-eight million, nine hundred fifty-four thousand, six hundred thirty-four".