2640026451 has 8 divisors (see below), whose sum is σ = 3529324480. Its totient is φ = 1755373032.

The previous prime is 2640026447. The next prime is 2640026453. The reversal of 2640026451 is 1546200462.

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

It is not a de Polignac number, because 2640026451 - 2² = 2640026447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640026453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159825 + ... + 1162098.

It is an arithmetic number, because the mean of its divisors is an integer number (441165560).

Almost surely, 2^2640026451 is an apocalyptic number.

2640026451 is a deficient number, since it is larger than the sum of its proper divisors (889298029).

2640026451 is a wasteful number, since it uses less digits than its factorization.

2640026451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322305.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2640026451 is about 51381.1877149604. The cubic root of 2640026451 is about 1382.0892618354.

The spelling of 2640026451 in words is "two billion, six hundred forty million, twenty-six thousand, four hundred fifty-one".