2698847540 has 12 divisors (see below), whose sum is σ = 5667579876. Its totient is φ = 1079539008.

The previous prime is 2698847519. The next prime is 2698847549. The reversal of 2698847540 is 457488962.

It can be written as a sum of positive squares in 2 ways, for example, as 614742436 + 2084105104 = 24794^2 + 45652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698847549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67471169 + ... + 67471208.

It is an arithmetic number, because the mean of its divisors is an integer number (472298323).

Almost surely, 2^2698847540 is an apocalyptic number.

2698847540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2698847540 is an abundant number, since it is smaller than the sum of its proper divisors (2968732336).

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

2698847540 is a wasteful number, since it uses less digits than its factorization.

2698847540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134942386 (or 134942384 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 2698847540 is about 51950.4334919354. The cubic root of 2698847540 is about 1392.2785016863.

The spelling of 2698847540 in words is "two billion, six hundred ninety-eight million, eight hundred forty-seven thousand, five hundred forty".