7440651287 has 2 divisors, whose sum is σ = 7440651288. Its totient is φ = 7440651286.

The previous prime is 7440651241. The next prime is 7440651311. The reversal of 7440651287 is 7821560447.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7440651287 - 2²⁰ = 7439602711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7440659287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3720325643 + 3720325644.

It is an arithmetic number, because the mean of its divisors is an integer number (3720325644).

Almost surely, 2^7440651287 is an apocalyptic number.

7440651287 is a deficient number, since it is larger than the sum of its proper divisors (1).

7440651287 is an equidigital number, since it uses as much as digits as its factorization.

7440651287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 7440651287 is about 86259.2098677005. The cubic root of 7440651287 is about 1952.2569779442.

The spelling of 7440651287 in words is "seven billion, four hundred forty million, six hundred fifty-one thousand, two hundred eighty-seven".