7506394387 has 6 divisors (see below), whose sum is σ = 7973920988. Its totient is φ = 7064841504.

The previous prime is 7506394367. The next prime is 7506394409. The reversal of 7506394387 is 7834936057.

It is a happy number.

It is not a de Polignac number, because 7506394387 - 2²⁷ = 7372176659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7506394367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12986553 + ... + 12987130.

Almost surely, 2^7506394387 is an apocalyptic number.

7506394387 is a deficient number, since it is larger than the sum of its proper divisors (467526601).

7506394387 is a wasteful number, since it uses less digits than its factorization.

7506394387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25973717 (or 25973700 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The square root of 7506394387 is about 86639.4505234192. The cubic root of 7506394387 is about 1957.9899554248.

The spelling of 7506394387 in words is "seven billion, five hundred six million, three hundred ninety-four thousand, three hundred eighty-seven".