49689053281 has 4 divisors (see below), whose sum is σ = 56787489472. Its totient is φ = 42590617092.

The previous prime is 49689053261. The next prime is 49689053303. The reversal of 49689053281 is 18235098694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49689053281 - 2²¹ = 49686956129 is a prime.

It is a super-2 number, since 2×49689053281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49689053261) 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, 3549218085 + ... + 3549218098.

It is an arithmetic number, because the mean of its divisors is an integer number (14196872368).

Almost surely, 2^49689053281 is an apocalyptic number.

It is an amenable number.

49689053281 is a deficient number, since it is larger than the sum of its proper divisors (7098436191).

49689053281 is an equidigital number, since it uses as much as digits as its factorization.

49689053281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098436190.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 49689053281 in words is "forty-nine billion, six hundred eighty-nine million, fifty-three thousand, two hundred eighty-one".