7927406563 has 4 divisors (see below), whose sum is σ = 8200765440. Its totient is φ = 7654047688.

The previous prime is 7927406503. The next prime is 7927406569. The reversal of 7927406563 is 3656047297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3656047297 = 7 ⋅522292471.

It is a cyclic number.

It is not a de Polignac number, because 7927406563 - 2¹³ = 7927398371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7927406569) 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, 136679395 + ... + 136679452.

It is an arithmetic number, because the mean of its divisors is an integer number (2050191360).

Almost surely, 2^7927406563 is an apocalyptic number.

7927406563 is a deficient number, since it is larger than the sum of its proper divisors (273358877).

7927406563 is a wasteful number, since it uses less digits than its factorization.

7927406563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273358876.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The square root of 7927406563 is about 89035.9846522742. The cubic root of 7927406563 is about 1993.9321561698.

The spelling of 7927406563 in words is "seven billion, nine hundred twenty-seven million, four hundred six thousand, five hundred sixty-three".