2479178772 has 48 divisors (see below), whose sum is σ = 7345717120. Its totient is φ = 708336576.

The previous prime is 2479178759. The next prime is 2479178789. The reversal of 2479178772 is 2778719742.

It is a super-2 number, since 2×2479178772² = 12292654767070855968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1638913 + ... + 1640424.

Almost surely, 2^2479178772 is an apocalyptic number.

It is an amenable number.

2479178772 is an abundant number, since it is smaller than the sum of its proper divisors (4866538348).

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

2479178772 is a wasteful number, since it uses less digits than its factorization.

2479178772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279357 (or 3279349 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 54.

The square root of 2479178772 is about 49791.3523817138. The cubic root of 2479178772 is about 1353.4304656328.

The spelling of 2479178772 in words is "two billion, four hundred seventy-nine million, one hundred seventy-eight thousand, seven hundred seventy-two".