7745098649 has 4 divisors (see below), whose sum is σ = 8152735440. Its totient is φ = 7337461860.

The previous prime is 7745098631. The next prime is 7745098771. The reversal of 7745098649 is 9468905477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9468905477 = 79 ⋅119859563.

It is a cyclic number.

It is not a de Polignac number, because 7745098649 - 2¹⁶ = 7745033113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7745098619) 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, 203818367 + ... + 203818404.

It is an arithmetic number, because the mean of its divisors is an integer number (2038183860).

Almost surely, 2^7745098649 is an apocalyptic number.

It is an amenable number.

7745098649 is a deficient number, since it is larger than the sum of its proper divisors (407636791).

7745098649 is a wasteful number, since it uses less digits than its factorization.

7745098649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407636790.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The square root of 7745098649 is about 88006.2421024782. The cubic root of 7745098649 is about 1978.5285337228.

The spelling of 7745098649 in words is "seven billion, seven hundred forty-five million, ninety-eight thousand, six hundred forty-nine".