49470501281 has 4 divisors (see below), whose sum is σ = 50026349700. Its totient is φ = 48914652864.

The previous prime is 49470501277. The next prime is 49470501329. The reversal of 49470501281 is 18210507494.

49470501281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18210507494 = 2 ⋅9105253747.

It can be written as a sum of positive squares in 2 ways, for example, as 6769998400 + 42700502881 = 82280^2 + 206641^2 .

It is a cyclic number.

It is not a de Polignac number, because 49470501281 - 2² = 49470501277 is a prime.

It is a super-2 number, since 2×49470501281² (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 (49470501481) 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, 277924076 + ... + 277924253.

It is an arithmetic number, because the mean of its divisors is an integer number (12506587425).

Almost surely, 2^49470501281 is an apocalyptic number.

It is an amenable number.

49470501281 is a deficient number, since it is larger than the sum of its proper divisors (555848419).

49470501281 is an equidigital number, since it uses as much as digits as its factorization.

49470501281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555848418.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 49470501281 in words is "forty-nine billion, four hundred seventy million, five hundred one thousand, two hundred eighty-one".