2400686882646 has 32 divisors (see below), whose sum is σ = 5210181301248. Its totient is φ = 733034159520.

The previous prime is 2400686882639. The next prime is 2400686882647. The reversal of 2400686882646 is 6462886860042.

It is a happy number.

It is a super-2 number, since 2×2400686882646² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2400686882646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400686882647) 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, 117463206 + ... + 117483641.

It is an arithmetic number, because the mean of its divisors is an integer number (162818165664).

Almost surely, 2^{2400686882646} is an apocalyptic number.

2400686882646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2400686882646 is an abundant number, since it is smaller than the sum of its proper divisors (2809494418602).

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

2400686882646 is a wasteful number, since it uses less digits than its factorization.

2400686882646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234946996.

The product of its (nonzero) digits is 42467328, while the sum is 60.

The spelling of 2400686882646 in words is "two trillion, four hundred billion, six hundred eighty-six million, eight hundred eighty-two thousand, six hundred forty-six".