245550879477 has 48 divisors (see below), whose sum is σ = 376620175152. Its totient is φ = 153632194560.

The previous prime is 245550879451. The next prime is 245550879487. The reversal of 245550879477 is 774978055542.

245550879477 is a `hidden beast` number, since 2 + 4 + 5 + 550 + 8 + 7 + 9 + 4 + 77 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 47355852996 + 198195026481 = 217614^2 + 445191^2 .

It is a de Polignac number, because none of the positive numbers 2^k-245550879477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245550879487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113627277 + ... + 113629437.

It is an arithmetic number, because the mean of its divisors is an integer number (7846253649).

Almost surely, 2^245550879477 is an apocalyptic number.

It is an amenable number.

245550879477 is a deficient number, since it is larger than the sum of its proper divisors (131069295675).

245550879477 is a wasteful number, since it uses less digits than its factorization.

245550879477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 98784000, while the sum is 63.

The spelling of 245550879477 in words is "two hundred forty-five billion, five hundred fifty million, eight hundred seventy-nine thousand, four hundred seventy-seven".