49573561040640 has 4608 divisors, whose sum is σ = 237352550400000. Its totient is φ = 9701151473664.

The previous prime is 49573561040629. The next prime is 49573561040651. The reversal of 49573561040640 is 4604016537594.

It is a happy number.

49573561040640 is a `hidden beast` number, since 4 + 9 + 5 + 73 + 561 + 0 + 4 + 0 + 6 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (49573561040629) and next prime (49573561040651).

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 511 ways as a sum of consecutive naturals, for example, 332708463286 + ... + 332708463434.

It is an arithmetic number, because the mean of its divisors is an integer number (51508800000).

Almost surely, 2^{49573561040640} is an apocalyptic number.

49573561040640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49573561040640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118676275200000).

49573561040640 is an abundant number, since it is smaller than the sum of its proper divisors (187778989359360).

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

49573561040640 is a wasteful number, since it uses less digits than its factorization.

49573561040640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 49573561040640 in words is "forty-nine trillion, five hundred seventy-three billion, five hundred sixty-one million, forty thousand, six hundred forty".