2613897680 has 40 divisors (see below), whose sum is σ = 6273360384. Its totient is φ = 1011830400.

The previous prime is 2613897673. The next prime is 2613897691. The reversal of 2613897680 is 867983162.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2613897680² = 13664922163018764800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 524516 + ... + 529475.

Almost surely, 2^2613897680 is an apocalyptic number.

2613897680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2613897680 is an abundant number, since it is smaller than the sum of its proper divisors (3659462704).

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

2613897680 is a wasteful number, since it uses less digits than its factorization.

2613897680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054035 (or 1054029 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2613897680 is about 51126.2914751305. The cubic root of 2613897680 is about 1377.5145488761.

The spelling of 2613897680 in words is "two billion, six hundred thirteen million, eight hundred ninety-seven thousand, six hundred eighty".