7862507642 has 12 divisors (see below), whose sum is σ = 12963391098. Its totient is φ = 3573867000.

The previous prime is 7862507623. The next prime is 7862507647. The reversal of 7862507642 is 2467052687.

It can be written as a sum of positive squares in only one way, i.e., 7843050721 + 19456921 = 88561^2 + 4411^2 .

It is not an unprimeable number, because it can be changed into a prime (7862507647) 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, 16244609 + ... + 16245092.

Almost surely, 2^7862507642 is an apocalyptic number.

7862507642 is a deficient number, since it is larger than the sum of its proper divisors (5100883456).

7862507642 is a wasteful number, since it uses less digits than its factorization.

7862507642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32489725 (or 32489714 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 7862507642 is about 88670.7823468362. The cubic root of 7862507642 is about 1988.4760300925.

The spelling of 7862507642 in words is "seven billion, eight hundred sixty-two million, five hundred seven thousand, six hundred forty-two".