49071981910 has 64 divisors (see below), whose sum is σ = 106323264000. Its totient is φ = 15929851392.

The previous prime is 49071981841. The next prime is 49071981911. The reversal of 49071981910 is 1918917094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49071981911) 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 31 ways as a sum of consecutive naturals, for example, 2481241 + ... + 2500939.

It is an arithmetic number, because the mean of its divisors is an integer number (1661301000).

Almost surely, 2^49071981910 is an apocalyptic number.

49071981910 is an abundant number, since it is smaller than the sum of its proper divisors (57251282090).

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

49071981910 is a wasteful number, since it uses less digits than its factorization.

49071981910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21605.

The product of its (nonzero) digits is 163296, while the sum is 49.

The spelling of 49071981910 in words is "forty-nine billion, seventy-one million, nine hundred eighty-one thousand, nine hundred ten".