49216925921 has 8 divisors (see below), whose sum is σ = 49758849504. Its totient is φ = 48676868800.

The previous prime is 49216925897. The next prime is 49216925929. The reversal of 49216925921 is 12952961294.

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

It is a cyclic number.

It is not a de Polignac number, because 49216925921 - 2¹⁴ = 49216909537 is a prime.

It is a super-2 number, since 2×49216925921² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49216925921.

It is not an unprimeable number, because it can be changed into a prime (49216925929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413555 + ... + 519096.

It is an arithmetic number, because the mean of its divisors is an integer number (6219856188).

Almost surely, 2^49216925921 is an apocalyptic number.

It is an amenable number.

49216925921 is a deficient number, since it is larger than the sum of its proper divisors (541923583).

49216925921 is a wasteful number, since it uses less digits than its factorization.

49216925921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933231.

The product of its digits is 699840, while the sum is 50.

The spelling of 49216925921 in words is "forty-nine billion, two hundred sixteen million, nine hundred twenty-five thousand, nine hundred twenty-one".