49129191750 has 32 divisors (see below), whose sum is σ = 122626464480. Its totient is φ = 13101117600.

The previous prime is 49129191719. The next prime is 49129191763. The reversal of 49129191750 is 5719192194.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49129191750.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32752045 + ... + 32753544.

It is an arithmetic number, because the mean of its divisors is an integer number (3832077015).

Almost surely, 2^49129191750 is an apocalyptic number.

49129191750 is an abundant number, since it is smaller than the sum of its proper divisors (73497272730).

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

49129191750 is a wasteful number, since it uses less digits than its factorization.

49129191750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65505609 (or 65505599 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 48.

The spelling of 49129191750 in words is "forty-nine billion, one hundred twenty-nine million, one hundred ninety-one thousand, seven hundred fifty".