49490747442 has 40 divisors (see below), whose sum is σ = 114719942700. Its totient is φ = 15928055136.

The previous prime is 49490747431. The next prime is 49490747443. The reversal of 49490747442 is 24474709494.

49490747442 is a `hidden beast` number, since 49 + 4 + 90 + 7 + 474 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48934306521 + 556440921 = 221211^2 + 23589^2 .

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

It is not an unprimeable number, because it can be changed into a prime (49490747443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5262517 + ... + 5271912.

Almost surely, 2^49490747442 is an apocalyptic number.

49490747442 is an abundant number, since it is smaller than the sum of its proper divisors (65229195258).

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

49490747442 is a wasteful number, since it uses less digits than its factorization.

49490747442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534472 (or 10534463 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 49490747442 in words is "forty-nine billion, four hundred ninety million, seven hundred forty-seven thousand, four hundred forty-two".