130561479278 has 4 divisors (see below), whose sum is σ = 195842218920. Its totient is φ = 65280739638.

The previous prime is 130561479277. The next prime is 130561479283. The reversal of 130561479278 is 872974165031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130561479277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32640369818 + ... + 32640369821.

It is an arithmetic number, because the mean of its divisors is an integer number (48960554730).

It is a 1-persistent number, because it is pandigital, but 2⋅130561479278 = 261122958556 is not.

Almost surely, 2^130561479278 is an apocalyptic number.

130561479278 is a deficient number, since it is larger than the sum of its proper divisors (65280739642).

130561479278 is an equidigital number, since it uses as much as digits as its factorization.

130561479278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65280739641.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 130561479278 in words is "one hundred thirty billion, five hundred sixty-one million, four hundred seventy-nine thousand, two hundred seventy-eight".