2779210480042 has 4 divisors (see below), whose sum is σ = 4168815720066. Its totient is φ = 1389605240020.

The previous prime is 2779210480037. The next prime is 2779210480051. The reversal of 2779210480042 is 2400840129772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1732806282321 + 1046404197721 = 1316361^2 + 1022939^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2779210479974 and 2779210480001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694802620009 + ... + 694802620012.

Almost surely, 2^{2779210480042} is an apocalyptic number.

2779210480042 is a deficient number, since it is larger than the sum of its proper divisors (1389605240024).

2779210480042 is a wasteful number, since it uses less digits than its factorization.

2779210480042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389605240023.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 2779210480042 in words is "two trillion, seven hundred seventy-nine billion, two hundred ten million, four hundred eighty thousand, forty-two".