49278709960 has 32 divisors (see below), whose sum is σ = 111277400760. Its totient is φ = 19640318976.

The previous prime is 49278709957. The next prime is 49278709967. The reversal of 49278709960 is 6990787294.

It can be written as a sum of positive squares in 4 ways, for example, as 24440319556 + 24838390404 = 156334^2 + 157602^2 .

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (49278709967) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2212689 + ... + 2234848.

Almost surely, 2^49278709960 is an apocalyptic number.

49278709960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49278709960 is an abundant number, since it is smaller than the sum of its proper divisors (61998690800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49278709960 is a wasteful number, since it uses less digits than its factorization.

49278709960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447825 (or 4447821 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 49278709960 in words is "forty-nine billion, two hundred seventy-eight million, seven hundred nine thousand, nine hundred sixty".