7940067617 has 4 divisors (see below), whose sum is σ = 8407130436. Its totient is φ = 7473004800.

The previous prime is 7940067589. The next prime is 7940067649. The reversal of 7940067617 is 7167600497.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5347119376 + 2592948241 = 73124^2 + 50921^2 .

It is a cyclic number.

It is not a de Polignac number, because 7940067617 - 2¹⁸ = 7939805473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7940007617) 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, 233531384 + ... + 233531417.

It is an arithmetic number, because the mean of its divisors is an integer number (2101782609).

Almost surely, 2^7940067617 is an apocalyptic number.

It is an amenable number.

7940067617 is a deficient number, since it is larger than the sum of its proper divisors (467062819).

7940067617 is a wasteful number, since it uses less digits than its factorization.

7940067617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467062818.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 7940067617 is about 89107.0570549830. The cubic root of 7940067617 is about 1994.9931107398.

The spelling of 7940067617 in words is "seven billion, nine hundred forty million, sixty-seven thousand, six hundred seventeen".