49261309028 has 6 divisors (see below), whose sum is σ = 86207290806. Its totient is φ = 24630654512.

The previous prime is 49261308977. The next prime is 49261309049. The reversal of 49261309028 is 82090316294.

It can be written as a sum of positive squares in only one way, i.e., 37592556544 + 11668752484 = 193888^2 + 108022^2 .

It is a super-2 number, since 2×49261309028² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49261309028.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6157663625 + ... + 6157663632.

It is an arithmetic number, because the mean of its divisors is an integer number (14367881801).

Almost surely, 2^49261309028 is an apocalyptic number.

It is an amenable number.

49261309028 is a deficient number, since it is larger than the sum of its proper divisors (36945981778).

49261309028 is a wasteful number, since it uses less digits than its factorization.

49261309028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12315327261 (or 12315327259 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 49261309028 in words is "forty-nine billion, two hundred sixty-one million, three hundred nine thousand, twenty-eight".