2639348742 has 32 divisors (see below), whose sum is σ = 5452038144. Its totient is φ = 850924800.

The previous prime is 2639348737. The next prime is 2639348759. The reversal of 2639348742 is 2478439362.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2639348691 and 2639348700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497142 + ... + 502422.

It is an arithmetic number, because the mean of its divisors is an integer number (170376192).

Almost surely, 2^2639348742 is an apocalyptic number.

2639348742 is an abundant number, since it is smaller than the sum of its proper divisors (2812689402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2639348742 is a wasteful number, since it uses less digits than its factorization.

2639348742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8004.

The product of its digits is 1741824, while the sum is 48.

The square root of 2639348742 is about 51374.5923779450. The cubic root of 2639348742 is about 1381.9709884635.

The spelling of 2639348742 in words is "two billion, six hundred thirty-nine million, three hundred forty-eight thousand, seven hundred forty-two".