2679643497 has 8 divisors (see below), whose sum is σ = 3728199744. Its totient is φ = 1708758128.

The previous prime is 2679643481. The next prime is 2679643507. The reversal of 2679643497 is 7943469762.

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

It is a cyclic number.

It is not a de Polignac number, because 2679643497 - 2⁴ = 2679643481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2679643457) 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, 19417638 + ... + 19417775.

It is an arithmetic number, because the mean of its divisors is an integer number (466024968).

Almost surely, 2^2679643497 is an apocalyptic number.

It is an amenable number.

2679643497 is a deficient number, since it is larger than the sum of its proper divisors (1048556247).

2679643497 is a wasteful number, since it uses less digits than its factorization.

2679643497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38835439.

The product of its digits is 13716864, while the sum is 57.

The square root of 2679643497 is about 51765.2730795463. The cubic root of 2679643497 is about 1388.9683176650.

The spelling of 2679643497 in words is "two billion, six hundred seventy-nine million, six hundred forty-three thousand, four hundred ninety-seven".