7739093681 has 16 divisors (see below), whose sum is σ = 8520735168. Its totient is φ = 6970641600.

The previous prime is 7739093653. The next prime is 7739093693. The reversal of 7739093681 is 1863909377.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7739093681 is a prime.

It is a super-2 number, since 2×7739093681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7739096681) 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, 971591 + ... + 979523.

It is an arithmetic number, because the mean of its divisors is an integer number (532545948).

Almost surely, 2^7739093681 is an apocalyptic number.

It is an amenable number.

7739093681 is a deficient number, since it is larger than the sum of its proper divisors (781641487).

7739093681 is a wasteful number, since it uses less digits than its factorization.

7739093681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 7739093681 is about 87972.1187706651. The cubic root of 7739093681 is about 1978.0170673560.

The spelling of 7739093681 in words is "seven billion, seven hundred thirty-nine million, ninety-three thousand, six hundred eighty-one".