2471421864 has 32 divisors (see below), whose sum is σ = 6180095520. Its totient is φ = 823601856.

The previous prime is 2471421863. The next prime is 2471421877. The reversal of 2471421864 is 4681241742.

It is a super-2 number, since 2×2471421864² = 12215852059714468992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2471421863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108999 + ... + 129705.

It is an arithmetic number, because the mean of its divisors is an integer number (193127985).

Almost surely, 2^2471421864 is an apocalyptic number.

2471421864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2471421864 is an abundant number, since it is smaller than the sum of its proper divisors (3708673656).

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

2471421864 is a wasteful number, since it uses less digits than its factorization.

2471421864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25689 (or 25685 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 2471421864 is about 49713.3972285138. The cubic root of 2471421864 is about 1352.0174434335.

The spelling of 2471421864 in words is "two billion, four hundred seventy-one million, four hundred twenty-one thousand, eight hundred sixty-four".