7640272903 has 2 divisors, whose sum is σ = 7640272904. Its totient is φ = 7640272902.

The previous prime is 7640272901. The next prime is 7640272987. The reversal of 7640272903 is 3092720467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7640272903 - 2¹ = 7640272901 is a prime.

Together with 7640272901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7640272901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3820136451 + 3820136452.

It is an arithmetic number, because the mean of its divisors is an integer number (3820136452).

Almost surely, 2^7640272903 is an apocalyptic number.

7640272903 is a deficient number, since it is larger than the sum of its proper divisors (1).

7640272903 is an equidigital number, since it uses as much as digits as its factorization.

7640272903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 7640272903 is about 87408.6546229834. The cubic root of 7640272903 is about 1969.5618515050.

The spelling of 7640272903 in words is "seven billion, six hundred forty million, two hundred seventy-two thousand, nine hundred three".