49195620658 has 4 divisors (see below), whose sum is σ = 73793430990. Its totient is φ = 24597810328.

The previous prime is 49195620641. The next prime is 49195620703. The reversal of 49195620658 is 85602659194.

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

It can be written as a sum of positive squares in only one way, i.e., 41092560369 + 8103060289 = 202713^2 + 90017^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49195620599 and 49195620608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12298905163 + ... + 12298905166.

Almost surely, 2^49195620658 is an apocalyptic number.

49195620658 is a deficient number, since it is larger than the sum of its proper divisors (24597810332).

49195620658 is a wasteful number, since it uses less digits than its factorization.

49195620658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24597810331.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 49195620658 in words is "forty-nine billion, one hundred ninety-five million, six hundred twenty thousand, six hundred fifty-eight".