2681380464 has 160 divisors (see below), whose sum is σ = 8240234496. Its totient is φ = 735194880.

The previous prime is 2681380451. The next prime is 2681380483. The reversal of 2681380464 is 4640831862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1321819 + ... + 1323845.

Almost surely, 2^2681380464 is an apocalyptic number.

2681380464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2681380464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4120117248).

2681380464 is an abundant number, since it is smaller than the sum of its proper divisors (5558854032).

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

2681380464 is a wasteful number, since it uses less digits than its factorization.

2681380464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 2681380464 is about 51782.0476999510. The cubic root of 2681380464 is about 1389.2683664134.

The spelling of 2681380464 in words is "two billion, six hundred eighty-one million, three hundred eighty thousand, four hundred sixty-four".