7748401543 has 2 divisors, whose sum is σ = 7748401544. Its totient is φ = 7748401542.

The previous prime is 7748401541. The next prime is 7748401553. The reversal of 7748401543 is 3451048477.

It is a weak prime.

It is an emirp because it is prime and its reverse (3451048477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7748401543 - 2¹ = 7748401541 is a prime.

Together with 7748401541, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7748401543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7748401541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3874200771 + 3874200772.

It is an arithmetic number, because the mean of its divisors is an integer number (3874200772).

Almost surely, 2^7748401543 is an apocalyptic number.

7748401543 is a deficient number, since it is larger than the sum of its proper divisors (1).

7748401543 is an equidigital number, since it uses as much as digits as its factorization.

7748401543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 43.

The square root of 7748401543 is about 88025.0052144276. The cubic root of 7748401543 is about 1978.8097413014.

The spelling of 7748401543 in words is "seven billion, seven hundred forty-eight million, four hundred one thousand, five hundred forty-three".