7912529481 has 4 divisors (see below), whose sum is σ = 10550039312. Its totient is φ = 5275019652.

The previous prime is 7912529473. The next prime is 7912529543. The reversal of 7912529481 is 1849252197.

It is a happy number.

7912529481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7912529481 - 2³ = 7912529473 is a prime.

It is a super-2 number, since 2×7912529481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7912529481.

It is not an unprimeable number, because it can be changed into a prime (7912529431) 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, 1318754911 + ... + 1318754916.

It is an arithmetic number, because the mean of its divisors is an integer number (2637509828).

Almost surely, 2^7912529481 is an apocalyptic number.

It is an amenable number.

7912529481 is a deficient number, since it is larger than the sum of its proper divisors (2637509831).

7912529481 is a wasteful number, since it uses less digits than its factorization.

7912529481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637509830.

The product of its digits is 362880, while the sum is 48.

The square root of 7912529481 is about 88952.4000856638. The cubic root of 7912529481 is about 1992.6840612342.

The spelling of 7912529481 in words is "seven billion, nine hundred twelve million, five hundred twenty-nine thousand, four hundred eighty-one".