2640770463 has 8 divisors (see below), whose sum is σ = 3728146608. Its totient is φ = 1656953984.

The previous prime is 2640770399. The next prime is 2640770467. The reversal of 2640770463 is 3640770462.

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 2640770463 - 2⁶ = 2640770399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640770467) 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, 25889856 + ... + 25889957.

It is an arithmetic number, because the mean of its divisors is an integer number (466018326).

Almost surely, 2^2640770463 is an apocalyptic number.

2640770463 is a deficient number, since it is larger than the sum of its proper divisors (1087376145).

2640770463 is a wasteful number, since it uses less digits than its factorization.

2640770463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51779833.

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 2640770463 is about 51388.4273256149. The cubic root of 2640770463 is about 1382.2190830616.

Subtracting 2640770463 from its reverse (3640770462), we obtain a palindrome (999999999).

The spelling of 2640770463 in words is "two billion, six hundred forty million, seven hundred seventy thousand, four hundred sixty-three".