7738369025 has 6 divisors (see below), whose sum is σ = 9595577622. Its totient is φ = 6190695200.

The previous prime is 7738368997. The next prime is 7738369057. The reversal of 7738369025 is 5209638377.

It is a happy number.

It is a Cunningham number, because it is equal to 87968²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 7738369024 = 1^2 + 87968^2 .

It is not a de Polignac number, because 7738369025 - 2¹⁴ = 7738352641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154767356 + ... + 154767405.

It is an arithmetic number, because the mean of its divisors is an integer number (1599262937).

Almost surely, 2^7738369025 is an apocalyptic number.

It is an amenable number.

7738369025 is a deficient number, since it is larger than the sum of its proper divisors (1857208597).

7738369025 is a wasteful number, since it uses less digits than its factorization.

7738369025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309534771 (or 309534766 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 7738369025 is about 87968.0000056839. Note that the first 5 decimals coincide. The cubic root of 7738369025 is about 1977.9553277115.

The spelling of 7738369025 in words is "seven billion, seven hundred thirty-eight million, three hundred sixty-nine thousand, twenty-five".