5161981479 has 8 divisors (see below), whose sum is σ = 6928834800. Its totient is φ = 3418224576.

The previous prime is 5161981459. The next prime is 5161981493. The reversal of 5161981479 is 9741891615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5161981479 - 2²⁴ = 5145204263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161981459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5773582 + ... + 5774475.

It is an arithmetic number, because the mean of its divisors is an integer number (866104350).

Almost surely, 2^5161981479 is an apocalyptic number.

5161981479 is a deficient number, since it is larger than the sum of its proper divisors (1766853321).

5161981479 is a wasteful number, since it uses less digits than its factorization.

5161981479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11548209.

The product of its digits is 544320, while the sum is 51.

The square root of 5161981479 is about 71846.9308947849. The cubic root of 5161981479 is about 1728.2456827274.

The spelling of 5161981479 in words is "five billion, one hundred sixty-one million, nine hundred eighty-one thousand, four hundred seventy-nine".