7438672645 has 8 divisors (see below), whose sum is σ = 8927175456. Its totient is φ = 5950425936.

The previous prime is 7438672639. The next prime is 7438672649. The reversal of 7438672645 is 5462768347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7438672645 - 2⁵ = 7438672613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7438672592 and 7438672601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438672649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7054 + ... + 122176.

It is an arithmetic number, because the mean of its divisors is an integer number (1115896932).

Almost surely, 2^7438672645 is an apocalyptic number.

It is an amenable number.

7438672645 is a deficient number, since it is larger than the sum of its proper divisors (1488502811).

7438672645 is a wasteful number, since it uses less digits than its factorization.

7438672645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128051.

The product of its digits is 6773760, while the sum is 52.

The square root of 7438672645 is about 86247.7399414037. The cubic root of 7438672645 is about 1952.0839124442.

The spelling of 7438672645 in words is "seven billion, four hundred thirty-eight million, six hundred seventy-two thousand, six hundred forty-five".