2641381380 has 96 divisors (see below), whose sum is σ = 8964708480. Its totient is φ = 640333440.

The previous prime is 2641381367. The next prime is 2641381397. The reversal of 2641381380 is 831831462.

2641381380 is a `hidden beast` number, since 2 + 641 + 3 + 8 + 1 + 3 + 8 + 0 = 666.

It is a super-2 number, since 2×2641381380² = 13953791189221408800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216399 + ... + 228278.

It is an arithmetic number, because the mean of its divisors is an integer number (93382380).

Almost surely, 2^2641381380 is an apocalyptic number.

2641381380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2641381380 is an abundant number, since it is smaller than the sum of its proper divisors (6323327100).

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

2641381380 is a wasteful number, since it uses less digits than its factorization.

2641381380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444706 (or 444698 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2641381380 is about 51394.3710925623. The cubic root of 2641381380 is about 1382.3256625668.

The spelling of 2641381380 in words is "two billion, six hundred forty-one million, three hundred eighty-one thousand, three hundred eighty".