6161839240 has 16 divisors (see below), whose sum is σ = 13864138380. Its totient is φ = 2464735680.

The previous prime is 6161839231. The next prime is 6161839249. The reversal of 6161839240 is 429381616.

It is an interprime number because it is at equal distance from previous prime (6161839231) and next prime (6161839249).

It can be written as a sum of positive squares in 2 ways, for example, as 6159424324 + 2414916 = 78482^2 + 1554^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 154045981 = 6161839240 / (6 + 1 + 6 + 1 + 8 + 3 + 9 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 6161839193 and 6161839202.

It is not an unprimeable number, because it can be changed into a prime (6161839249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77022951 + ... + 77023030.

Almost surely, 2^6161839240 is an apocalyptic number.

It is an amenable number.

6161839240 is an abundant number, since it is smaller than the sum of its proper divisors (7702299140).

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

6161839240 is a wasteful number, since it uses less digits than its factorization.

6161839240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154045992 (or 154045988 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 6161839240 is about 78497.3836506670. The cubic root of 6161839240 is about 1833.3137168884.

The spelling of 6161839240 in words is "six billion, one hundred sixty-one million, eight hundred thirty-nine thousand, two hundred forty".