2473422778 has 4 divisors (see below), whose sum is σ = 3710134170. Its totient is φ = 1236711388.

The previous prime is 2473422773. The next prime is 2473422779. The reversal of 2473422778 is 8772243742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8772243742 = 2 ⋅4386121871.

It can be written as a sum of positive squares in only one way, i.e., 2029772809 + 443649969 = 45053^2 + 21063^2 .

It is a super-2 number, since 2×2473422778² = 12235640477458474568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2473422773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618355693 + ... + 618355696.

Almost surely, 2^2473422778 is an apocalyptic number.

2473422778 is a deficient number, since it is larger than the sum of its proper divisors (1236711392).

2473422778 is a wasteful number, since it uses less digits than its factorization.

2473422778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236711391.

The product of its digits is 1053696, while the sum is 46.

The square root of 2473422778 is about 49733.5176515798. The cubic root of 2473422778 is about 1352.3822187231.

It can be divided in two parts, 2473422 and 778, that added together give a triangular number (2474200 = T₂₂₂₄).

The spelling of 2473422778 in words is "two billion, four hundred seventy-three million, four hundred twenty-two thousand, seven hundred seventy-eight".