4189915493620 has 24 divisors (see below), whose sum is σ = 9013427966088. Its totient is φ = 1635088972800.

The previous prime is 4189915493609. The next prime is 4189915493629. The reversal of 4189915493620 is 263945199814.

It can be written as a sum of positive squares in 4 ways, for example, as 4560571024 + 4185354922596 = 67532^2 + 2045814^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4189915493629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2554825701 + ... + 2554827340.

It is an arithmetic number, because the mean of its divisors is an integer number (375559498587).

Almost surely, 2^{4189915493620} is an apocalyptic number.

It is an amenable number.

4189915493620 is an abundant number, since it is smaller than the sum of its proper divisors (4823512472468).

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

4189915493620 is a wasteful number, since it uses less digits than its factorization.

4189915493620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109653091 (or 5109653089 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 4189915493620 in words is "four trillion, one hundred eighty-nine billion, nine hundred fifteen million, four hundred ninety-three thousand, six hundred twenty".