49180643021 has 8 divisors (see below), whose sum is σ = 51343087680. Its totient is φ = 47020211392.

The previous prime is 49180642999. The next prime is 49180643041. The reversal of 49180643021 is 12034608194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49180643021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49180643041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453215 + ... + 551148.

It is an arithmetic number, because the mean of its divisors is an integer number (6417885960).

Almost surely, 2^49180643021 is an apocalyptic number.

It is an amenable number.

49180643021 is a deficient number, since it is larger than the sum of its proper divisors (2162444659).

49180643021 is a wasteful number, since it uses less digits than its factorization.

49180643021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006515.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 49180643021 in words is "forty-nine billion, one hundred eighty million, six hundred forty-three thousand, twenty-one".