7798731123 has 16 divisors (see below), whose sum is σ = 10479384576. Its totient is φ = 5158755360.

The previous prime is 7798731119. The next prime is 7798731137. The reversal of 7798731123 is 3211378977.

It is not a de Polignac number, because 7798731123 - 2² = 7798731119 is a prime.

It is a super-2 number, since 2×7798731123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7798731173) 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, 210340 + ... + 244622.

It is an arithmetic number, because the mean of its divisors is an integer number (654961536).

Almost surely, 2^7798731123 is an apocalyptic number.

7798731123 is a deficient number, since it is larger than the sum of its proper divisors (2680653453).

7798731123 is a wasteful number, since it uses less digits than its factorization.

7798731123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34874.

The product of its digits is 444528, while the sum is 48.

The square root of 7798731123 is about 88310.4247696726. The cubic root of 7798731123 is about 1983.0849372195.

The spelling of 7798731123 in words is "seven billion, seven hundred ninety-eight million, seven hundred thirty-one thousand, one hundred twenty-three".