2640570743 has 8 divisors (see below), whose sum is σ = 2661506640. Its totient is φ = 2619659200.

The previous prime is 2640570697. The next prime is 2640570787. The reversal of 2640570743 is 3470750462.

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

It is not a de Polignac number, because 2640570743 - 2¹² = 2640566647 is a prime.

It is a super-2 number, since 2×2640570743² = 13945227697575144098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2640570697 and 2640570706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640570143) 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, 255368 + ... + 265506.

It is an arithmetic number, because the mean of its divisors is an integer number (332688330).

Almost surely, 2^2640570743 is an apocalyptic number.

2640570743 is a deficient number, since it is larger than the sum of its proper divisors (20935897).

2640570743 is a wasteful number, since it uses less digits than its factorization.

2640570743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12177.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 2640570743 is about 51386.4840497966. The cubic root of 2640570743 is about 1382.1842366966.

The spelling of 2640570743 in words is "two billion, six hundred forty million, five hundred seventy thousand, seven hundred forty-three".