7730135971 has 4 divisors (see below), whose sum is σ = 7785748600. Its totient is φ = 7674523344.

The previous prime is 7730135969. The next prime is 7730135981. The reversal of 7730135971 is 1795310377.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7730135971 - 2¹ = 7730135969 is a prime.

It is a super-2 number, since 2×7730135971² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7730135951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27806106 + ... + 27806383.

It is an arithmetic number, because the mean of its divisors is an integer number (1946437150).

Almost surely, 2^7730135971 is an apocalyptic number.

7730135971 is a deficient number, since it is larger than the sum of its proper divisors (55612629).

7730135971 is a wasteful number, since it uses less digits than its factorization.

7730135971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55612628.

The product of its (nonzero) digits is 138915, while the sum is 43.

The square root of 7730135971 is about 87921.1918197200. The cubic root of 7730135971 is about 1977.2536125915.

The spelling of 7730135971 in words is "seven billion, seven hundred thirty million, one hundred thirty-five thousand, nine hundred seventy-one".