2391841647364 has 81 divisors (see below), whose sum is σ = 4816144708767. Its totient is φ = 1038693097728.

The previous prime is 2391841647337. The next prime is 2391841647421. The reversal of 2391841647364 is 4637461481932.

It is a happy number.

The square root of 2391841647364 is 1546558.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 21596653764 + 2370244993600 = 146958^2 + 1539560^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2391841647299 and 2391841647308.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 683576887 + ... + 683580385.

Almost surely, 2^{2391841647364} is an apocalyptic number.

2391841647364 is the 1546558-th square number.

It is an amenable number.

2391841647364 is an abundant number, since it is smaller than the sum of its proper divisors (2424303061403).

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

2391841647364 is an equidigital number, since it uses as much as digits as its factorization.

2391841647364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7062 (or 3531 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The spelling of 2391841647364 in words is "two trillion, three hundred ninety-one billion, eight hundred forty-one million, six hundred forty-seven thousand, three hundred sixty-four".