7681071849 has 16 divisors (see below), whose sum is σ = 11228620800. Its totient is φ = 4631798160.

The previous prime is 7681071809. The next prime is 7681071851. The reversal of 7681071849 is 9481701867.

It is not a de Polignac number, because 7681071849 - 2⁹ = 7681071337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7681071809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578257 + ... + 591390.

It is an arithmetic number, because the mean of its divisors is an integer number (701788800).

Almost surely, 2^7681071849 is an apocalyptic number.

It is an amenable number.

7681071849 is a deficient number, since it is larger than the sum of its proper divisors (3547548951).

7681071849 is a wasteful number, since it uses less digits than its factorization.

7681071849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169860.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 7681071849 is about 87641.7243611740. The cubic root of 7681071849 is about 1973.0614401581.

The spelling of 7681071849 in words is "seven billion, six hundred eighty-one million, seventy-one thousand, eight hundred forty-nine".