1959117479 has 16 divisors (see below), whose sum is σ = 2175984000. Its totient is φ = 1748783520.

The previous prime is 1959117469. The next prime is 1959117481. The reversal of 1959117479 is 9747119591.

It is not a de Polignac number, because 1959117479 - 2²⁸ = 1690682023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1959117479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959117469) 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, 945857 + ... + 947925.

It is an arithmetic number, because the mean of its divisors is an integer number (135999000).

Almost surely, 2^1959117479 is an apocalyptic number.

1959117479 is a deficient number, since it is larger than the sum of its proper divisors (216866521).

1959117479 is a wasteful number, since it uses less digits than its factorization.

1959117479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598.

The product of its digits is 714420, while the sum is 53.

The square root of 1959117479 is about 44261.9190614234. The cubic root of 1959117479 is about 1251.2770903079.

The spelling of 1959117479 in words is "one billion, nine hundred fifty-nine million, one hundred seventeen thousand, four hundred seventy-nine".