7748645423 has 4 divisors (see below), whose sum is σ = 7751272368. Its totient is φ = 7746018480.

The previous prime is 7748645419. The next prime is 7748645449. The reversal of 7748645423 is 3245468477.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7748645423 - 2² = 7748645419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7748645453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309043 + ... + 1314948.

It is an arithmetic number, because the mean of its divisors is an integer number (1937818092).

Almost surely, 2^7748645423 is an apocalyptic number.

7748645423 is a deficient number, since it is larger than the sum of its proper divisors (2626945).

7748645423 is a wasteful number, since it uses less digits than its factorization.

7748645423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626944.

The product of its digits is 4515840, while the sum is 50.

The square root of 7748645423 is about 88026.3904917156. The cubic root of 7748645423 is about 1978.8305020159.

The spelling of 7748645423 in words is "seven billion, seven hundred forty-eight million, six hundred forty-five thousand, four hundred twenty-three".