2640313545 has 32 divisors (see below), whose sum is σ = 4265395200. Its totient is φ = 1394602944.

The previous prime is 2640313517. The next prime is 2640313573. The reversal of 2640313545 is 5453130462.

It is an interprime number because it is at equal distance from previous prime (2640313517) and next prime (2640313573).

It is not a de Polignac number, because 2640313545 - 2⁵ = 2640313513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704286 + ... + 708024.

It is an arithmetic number, because the mean of its divisors is an integer number (133293600).

Almost surely, 2^2640313545 is an apocalyptic number.

It is an amenable number.

2640313545 is a deficient number, since it is larger than the sum of its proper divisors (1625081655).

2640313545 is a wasteful number, since it uses less digits than its factorization.

2640313545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2640313545 is about 51383.9814047141. The cubic root of 2640313545 is about 1382.1393592062.

The spelling of 2640313545 in words is "two billion, six hundred forty million, three hundred thirteen thousand, five hundred forty-five".