4091610978 has 48 divisors (see below), whose sum is σ = 10910966976. Its totient is φ = 1079105760.

The previous prime is 4091610959. The next prime is 4091610979. The reversal of 4091610978 is 8790161904.

It is a happy number.

4091610978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4091610979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247328 + ... + 1250603.

It is an arithmetic number, because the mean of its divisors is an integer number (227311812).

Almost surely, 2^4091610978 is an apocalyptic number.

4091610978 is an abundant number, since it is smaller than the sum of its proper divisors (6819355998).

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

4091610978 is a wasteful number, since it uses less digits than its factorization.

4091610978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497959 (or 2497956 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 4091610978 is about 63965.7015751410. The cubic root of 4091610978 is about 1599.4283085153.

The spelling of 4091610978 in words is "four billion, ninety-one million, six hundred ten thousand, nine hundred seventy-eight".