49811475145 has 8 divisors (see below), whose sum is σ = 61389277704. Its totient is φ = 38772175104.

The previous prime is 49811475139. The next prime is 49811475173. The reversal of 49811475145 is 54157411894.

It can be written as a sum of positive squares in 4 ways, for example, as 4471864384 + 45339610761 = 66872^2 + 212931^2 .

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 49811475145 - 2³ = 49811475137 is a prime.

It is a super-2 number, since 2×49811475145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134625424 + ... + 134625793.

It is an arithmetic number, because the mean of its divisors is an integer number (7673659713).

Almost surely, 2^49811475145 is an apocalyptic number.

It is an amenable number.

49811475145 is a deficient number, since it is larger than the sum of its proper divisors (11577802559).

49811475145 is a wasteful number, since it uses less digits than its factorization.

49811475145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269251259.

The product of its digits is 806400, while the sum is 49.

The spelling of 49811475145 in words is "forty-nine billion, eight hundred eleven million, four hundred seventy-five thousand, one hundred forty-five".