5129489772780 has 24 divisors (see below), whose sum is σ = 14362571363952. Its totient is φ = 1367863939392.

The previous prime is 5129489772679. The next prime is 5129489772791. The reversal of 5129489772780 is 872779849215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42745748047 + ... + 42745748166.

It is an arithmetic number, because the mean of its divisors is an integer number (598440473498).

Almost surely, 2^{5129489772780} is an apocalyptic number.

It is an amenable number.

5129489772780 is an abundant number, since it is smaller than the sum of its proper divisors (9233081591172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5129489772780 is a wasteful number, since it uses less digits than its factorization.

5129489772780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85491496225 (or 85491496223 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 69.

The spelling of 5129489772780 in words is "five trillion, one hundred twenty-nine billion, four hundred eighty-nine million, seven hundred seventy-two thousand, seven hundred eighty".