2640837853 has 8 divisors (see below), whose sum is σ = 2681302976. Its totient is φ = 2600488800.

The previous prime is 2640837841. The next prime is 2640837863. The reversal of 2640837853 is 3587380462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2640837853 - 2²¹ = 2638740701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640837863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17398 + ... + 74728.

It is an arithmetic number, because the mean of its divisors is an integer number (335162872).

Almost surely, 2^2640837853 is an apocalyptic number.

It is an amenable number.

2640837853 is a deficient number, since it is larger than the sum of its proper divisors (40465123).

2640837853 is an equidigital number, since it uses as much as digits as its factorization.

2640837853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58035.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 2640837853 is about 51389.0830138075. The cubic root of 2640837853 is about 1382.2308406090.

It can be divided in two parts, 26408 and 37853, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 2640837853 in words is "two billion, six hundred forty million, eight hundred thirty-seven thousand, eight hundred fifty-three".