2647431879 has 8 divisors (see below), whose sum is σ = 3737550960. Its totient is φ = 1661133696.

The previous prime is 2647431841. The next prime is 2647431887. The reversal of 2647431879 is 9781347462.

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

It is not a de Polignac number, because 2647431879 - 2⁷ = 2647431751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 51910429 = 2647431879 / (2 + 6 + 4 + 7 + 4 + 3 + 1 + 8 + 7 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647431179) 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, 25955164 + ... + 25955265.

It is an arithmetic number, because the mean of its divisors is an integer number (467193870).

Almost surely, 2^2647431879 is an apocalyptic number.

2647431879 is a deficient number, since it is larger than the sum of its proper divisors (1090119081).

2647431879 is a wasteful number, since it uses less digits than its factorization.

2647431879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51910449.

The product of its digits is 2032128, while the sum is 51.

The square root of 2647431879 is about 51453.2008625314. The cubic root of 2647431879 is about 1383.3803357072.

The spelling of 2647431879 in words is "two billion, six hundred forty-seven million, four hundred thirty-one thousand, eight hundred seventy-nine".