49179621797 has 8 divisors (see below), whose sum is σ = 49390904472. Its totient is φ = 48968582400.

The previous prime is 49179621787. The next prime is 49179621857. The reversal of 49179621797 is 79712697194.

It can be written as a sum of positive squares in 4 ways, for example, as 7335237316 + 41844384481 = 85646^2 + 204559^2 .

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 49179621797 - 2¹⁴ = 49179605413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49179621767) 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, 350297 + ... + 470177.

It is an arithmetic number, because the mean of its divisors is an integer number (6173863059).

Almost surely, 2^49179621797 is an apocalyptic number.

It is an amenable number.

49179621797 is a deficient number, since it is larger than the sum of its proper divisors (211282675).

49179621797 is a wasteful number, since it uses less digits than its factorization.

49179621797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121639.

The product of its digits is 12002256, while the sum is 62.

The spelling of 49179621797 in words is "forty-nine billion, one hundred seventy-nine million, six hundred twenty-one thousand, seven hundred ninety-seven".