7929352381 has 16 divisors (see below), whose sum is σ = 8527559040. Its totient is φ = 7345958400.

The previous prime is 7929352369. The next prime is 7929352421. The reversal of 7929352381 is 1832539297.

It is not a de Polignac number, because 7929352381 - 2⁹ = 7929351869 is a prime.

It is a super-2 number, since 2×7929352381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7929352331) 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, 2904225 + ... + 2906953.

It is an arithmetic number, because the mean of its divisors is an integer number (532972440).

Almost surely, 2^7929352381 is an apocalyptic number.

It is an amenable number.

7929352381 is a deficient number, since it is larger than the sum of its proper divisors (598206659).

7929352381 is a wasteful number, since it uses less digits than its factorization.

7929352381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5364.

The product of its digits is 816480, while the sum is 49.

The square root of 7929352381 is about 89046.9111255410. The cubic root of 7929352381 is about 1994.0952827296.

The spelling of 7929352381 in words is "seven billion, nine hundred twenty-nine million, three hundred fifty-two thousand, three hundred eighty-one".