3681024978 has 32 divisors (see below), whose sum is σ = 7402752000. Its totient is φ = 1220242320.

The previous prime is 3681024911. The next prime is 3681024979. The reversal of 3681024978 is 8794201863.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3681024979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050273 + ... + 1053771.

It is an arithmetic number, because the mean of its divisors is an integer number (231336000).

Almost surely, 2^3681024978 is an apocalyptic number.

3681024978 is an abundant number, since it is smaller than the sum of its proper divisors (3721727022).

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

3681024978 is a wasteful number, since it uses less digits than its factorization.

3681024978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 3681024978 is about 60671.4510952227. The cubic root of 3681024978 is about 1544.0318505895.

The spelling of 3681024978 in words is "three billion, six hundred eighty-one million, twenty-four thousand, nine hundred seventy-eight".