1979376129 has 64 divisors (see below), whose sum is σ = 3212492800. Its totient is φ = 1200225600.

The previous prime is 1979376097. The next prime is 1979376163. The reversal of 1979376129 is 9216739791.

It is a happy number.

1979376129 is a `hidden beast` number, since 19 + 7 + 9 + 3 + 7 + 612 + 9 = 666.

1979376129 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1979376129 - 2⁵ = 1979376097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1979376169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1344864 + ... + 1346334.

It is an arithmetic number, because the mean of its divisors is an integer number (50195200).

Almost surely, 2^1979376129 is an apocalyptic number.

1979376129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1979376129 is a deficient number, since it is larger than the sum of its proper divisors (1233116671).

1979376129 is a wasteful number, since it uses less digits than its factorization.

1979376129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1597 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 1979376129 is about 44490.1801412402. The cubic root of 1979376129 is about 1255.5753363808.

The spelling of 1979376129 in words is "one billion, nine hundred seventy-nine million, three hundred seventy-six thousand, one hundred twenty-nine".