1879647965 has 16 divisors (see below), whose sum is σ = 2463302016. Its totient is φ = 1368494400.

The previous prime is 1879647943. The next prime is 1879647967. The reversal of 1879647965 is 5697469781.

It is not a de Polignac number, because 1879647965 - 2²⁰ = 1878599389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1879647898 and 1879647907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1879647967) 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, 199031 + ... + 208260.

It is an arithmetic number, because the mean of its divisors is an integer number (153956376).

Almost surely, 2^1879647965 is an apocalyptic number.

It is an amenable number.

1879647965 is a deficient number, since it is larger than the sum of its proper divisors (583654051).

1879647965 is a wasteful number, since it uses less digits than its factorization.

1879647965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407380.

The product of its digits is 22861440, while the sum is 62.

The square root of 1879647965 is about 43354.9070463771. The cubic root of 1879647965 is about 1234.1241179300.

The spelling of 1879647965 in words is "one billion, eight hundred seventy-nine million, six hundred forty-seven thousand, nine hundred sixty-five".