7919754049 has 3 divisors (see below), whose sum is σ = 7919843043. Its totient is φ = 7919665056.

The previous prime is 7919754023. The next prime is 7919754103. The reversal of 7919754049 is 9404579197.

The square root of 7919754049 is 88993.

It is a perfect power (a square), and thus also a powerful number.

7919754049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7643130625 + 276623424 = 87425^2 + 16632^2 .

It is not a de Polignac number, because 7919754049 - 2⁹ = 7919753537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7919754019) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 44497 + ... + 133489.

It is an arithmetic number, because the mean of its divisors is an integer number (2639947681).

Almost surely, 2^7919754049 is an apocalyptic number.

7919754049 is the 88993-rd square number.

7919754049 is the 44497-th centered octagonal number.

It is an amenable number.

7919754049 is a deficient number, since it is larger than the sum of its proper divisors (88994).

7919754049 is an frugal number, since it uses more digits than its factorization.

7919754049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177986 (or 88993 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 55.

The cubic root of 7919754049 is about 1993.2903529066.

The spelling of 7919754049 in words is "seven billion, nine hundred nineteen million, seven hundred fifty-four thousand, forty-nine".