49278785635 has 4 divisors (see below), whose sum is σ = 59134542768. Its totient is φ = 39423028504.

The previous prime is 49278785623. The next prime is 49278785639. The reversal of 49278785635 is 53658787294.

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

It is a cyclic number.

It is not a de Polignac number, because 49278785635 - 2⁵ = 49278785603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49278785639) 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, 4927878559 + ... + 4927878568.

It is an arithmetic number, because the mean of its divisors is an integer number (14783635692).

Almost surely, 2^49278785635 is an apocalyptic number.

49278785635 is a deficient number, since it is larger than the sum of its proper divisors (9855757133).

49278785635 is an equidigital number, since it uses as much as digits as its factorization.

49278785635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9855757132.

The product of its digits is 101606400, while the sum is 64.

The spelling of 49278785635 in words is "forty-nine billion, two hundred seventy-eight million, seven hundred eighty-five thousand, six hundred thirty-five".