7245774649 has 4 divisors (see below), whose sum is σ = 7278267136. Its totient is φ = 7213282164.

The previous prime is 7245774623. The next prime is 7245774691. The reversal of 7245774649 is 9464775427.

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.

It is a cyclic number.

It is not a de Polignac number, because 7245774649 - 2²³ = 7237386041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7245774649.

It is not an unprimeable number, because it can be changed into a prime (7245774619) 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, 16245909 + ... + 16246354.

It is an arithmetic number, because the mean of its divisors is an integer number (1819566784).

Almost surely, 2^7245774649 is an apocalyptic number.

It is an amenable number.

7245774649 is a deficient number, since it is larger than the sum of its proper divisors (32492487).

7245774649 is a wasteful number, since it uses less digits than its factorization.

7245774649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32492486.

The product of its digits is 11854080, while the sum is 55.

The square root of 7245774649 is about 85122.1160979918. The cubic root of 7245774649 is about 1935.0622515566.

The spelling of 7245774649 in words is "seven billion, two hundred forty-five million, seven hundred seventy-four thousand, six hundred forty-nine".