7932561842 has 8 divisors (see below), whose sum is σ = 11900878236. Its totient is φ = 3965602432.

The previous prime is 7932561827. The next prime is 7932561851. The reversal of 7932561842 is 2481652397.

It can be written as a sum of positive squares in 2 ways, for example, as 7814383201 + 118178641 = 88399^2 + 10871^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324503 + ... + 348090.

Almost surely, 2^7932561842 is an apocalyptic number.

7932561842 is a deficient number, since it is larger than the sum of its proper divisors (3968316394).

7932561842 is a wasteful number, since it uses less digits than its factorization.

7932561842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678492.

The product of its digits is 725760, while the sum is 47.

The square root of 7932561842 is about 89064.9304833277. The cubic root of 7932561842 is about 1994.3642877904.

The spelling of 7932561842 in words is "seven billion, nine hundred thirty-two million, five hundred sixty-one thousand, eight hundred forty-two".