49220518177 has 4 divisors (see below), whose sum is σ = 49221802516. Its totient is φ = 49219233840.

The previous prime is 49220518157. The next prime is 49220518223. The reversal of 49220518177 is 77181502294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16941365281 + 32279152896 = 130159^2 + 179664^2 .

It is a cyclic number.

It is not a de Polignac number, because 49220518177 - 2⁷ = 49220518049 is a prime.

It is a super-2 number, since 2×49220518177² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49220518157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582858 + ... + 661939.

It is an arithmetic number, because the mean of its divisors is an integer number (12305450629).

Almost surely, 2^49220518177 is an apocalyptic number.

It is an amenable number.

49220518177 is a deficient number, since it is larger than the sum of its proper divisors (1284339).

49220518177 is a wasteful number, since it uses less digits than its factorization.

49220518177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284338.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 49220518177 in words is "forty-nine billion, two hundred twenty million, five hundred eighteen thousand, one hundred seventy-seven".