1979332465 has 16 divisors (see below), whose sum is σ = 2611537920. Its totient is φ = 1428174720.

The previous prime is 1979332463. The next prime is 1979332469. The reversal of 1979332465 is 5642339791.

It is not a de Polignac number, because 1979332465 - 2¹ = 1979332463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1979332463) 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, 134700 + ... + 148669.

It is an arithmetic number, because the mean of its divisors is an integer number (163221120).

Almost surely, 2^1979332465 is an apocalyptic number.

It is an amenable number.

1979332465 is a deficient number, since it is larger than the sum of its proper divisors (632205455).

1979332465 is a wasteful number, since it uses less digits than its factorization.

1979332465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283512.

The product of its digits is 1224720, while the sum is 49.

The square root of 1979332465 is about 44489.6894235058. The cubic root of 1979332465 is about 1255.5661038683.

The spelling of 1979332465 in words is "one billion, nine hundred seventy-nine million, three hundred thirty-two thousand, four hundred sixty-five".