6161291028 has 96 divisors (see below), whose sum is σ = 16947342720. Its totient is φ = 1929070080.

The previous prime is 6161290973. The next prime is 6161291039. The reversal of 6161291028 is 8201921616.

6161291028 is a `hidden beast` number, since 6 + 1 + 612 + 9 + 10 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6161290983 and 6161291001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990175 + ... + 996377.

It is an arithmetic number, because the mean of its divisors is an integer number (176534820).

Almost surely, 2^6161291028 is an apocalyptic number.

6161291028 is a gapful number since it is divisible by the number (68) 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 6161291028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8473671360).

6161291028 is an abundant number, since it is smaller than the sum of its proper divisors (10786051692).

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

6161291028 is a wasteful number, since it uses less digits than its factorization.

6161291028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774 (or 6766 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 6161291028 is about 78493.8916604343. The cubic root of 6161291028 is about 1833.2593459802.

The spelling of 6161291028 in words is "six billion, one hundred sixty-one million, two hundred ninety-one thousand, twenty-eight".