7813120534 has 8 divisors (see below), whose sum is σ = 11725313400. Its totient is φ = 3904682736.

The previous prime is 7813120507. The next prime is 7813120537. The reversal of 7813120534 is 4350213187.

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

It is a super-2 number, since 2×7813120534² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7813120534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7813120537) 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, 933559 + ... + 941890.

It is an arithmetic number, because the mean of its divisors is an integer number (1465664175).

Almost surely, 2^7813120534 is an apocalyptic number.

7813120534 is a deficient number, since it is larger than the sum of its proper divisors (3912192866).

7813120534 is a wasteful number, since it uses less digits than its factorization.

7813120534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877534.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 7813120534 is about 88391.8578490123. The cubic root of 7813120534 is about 1984.3038488400.

The spelling of 7813120534 in words is "seven billion, eight hundred thirteen million, one hundred twenty thousand, five hundred thirty-four".