7681073381 has 8 divisors (see below), whose sum is σ = 7712494944. Its totient is φ = 7649694000.

The previous prime is 7681073377. The next prime is 7681073401. The reversal of 7681073381 is 1833701867.

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

It is a cyclic number.

It is not a de Polignac number, because 7681073381 - 2² = 7681073377 is a prime.

It is a super-2 number, since 2×7681073381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681073311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384131 + ... + 403631.

It is an arithmetic number, because the mean of its divisors is an integer number (964061868).

Almost surely, 2^7681073381 is an apocalyptic number.

It is an amenable number.

7681073381 is a deficient number, since it is larger than the sum of its proper divisors (31421563).

7681073381 is a wasteful number, since it uses less digits than its factorization.

7681073381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21091.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 7681073381 is about 87641.7331013028. The cubic root of 7681073381 is about 1973.0615713347.

The spelling of 7681073381 in words is "seven billion, six hundred eighty-one million, seventy-three thousand, three hundred eighty-one".