2477798947 has 16 divisors (see below), whose sum is σ = 2880440640. Its totient is φ = 2112308352.

The previous prime is 2477798899. The next prime is 2477799001. The reversal of 2477798947 is 7498977742.

It is a cyclic number.

It is not a de Polignac number, because 2477798947 - 2¹⁹ = 2477274659 is a prime.

It is a super-2 number, since 2×2477798947² = 12278975243508617618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2477790947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134208 + ... + 151549.

It is an arithmetic number, because the mean of its divisors is an integer number (180027540).

Almost surely, 2^2477798947 is an apocalyptic number.

2477798947 is a deficient number, since it is larger than the sum of its proper divisors (402641693).

2477798947 is a wasteful number, since it uses less digits than its factorization.

2477798947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285822.

The product of its digits is 49787136, while the sum is 64.

The square root of 2477798947 is about 49777.4943825018. The cubic root of 2477798947 is about 1353.1793282022.

The spelling of 2477798947 in words is "two billion, four hundred seventy-seven million, seven hundred ninety-eight thousand, nine hundred forty-seven".