2147376864 has 48 divisors (see below), whose sum is σ = 5658862608. Its totient is φ = 712998912.

The previous prime is 2147376823. The next prime is 2147376883. The reversal of 2147376864 is 4686737412.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2147376864² = 9222454792084948992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18847 + ... + 68190.

It is an arithmetic number, because the mean of its divisors is an integer number (117892971).

Almost surely, 2^2147376864 is an apocalyptic number.

2147376864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2147376864 is an abundant number, since it is smaller than the sum of its proper divisors (3511485744).

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

2147376864 is a wasteful number, since it uses less digits than its factorization.

2147376864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87307 (or 87299 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 48.

The square root of 2147376864 is about 46339.7978415962. The cubic root of 2147376864 is about 1290.1377702747.

The spelling of 2147376864 in words is "two billion, one hundred forty-seven million, three hundred seventy-six thousand, eight hundred sixty-four".