49149791493 has 32 divisors (see below), whose sum is σ = 71987692032. Its totient is φ = 29581041600.

The previous prime is 49149791479. The next prime is 49149791497. The reversal of 49149791493 is 39419794194.

It is not a de Polignac number, because 49149791493 - 2¹² = 49149787397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49149791497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5401878 + ... + 5410968.

It is an arithmetic number, because the mean of its divisors is an integer number (2249615376).

Almost surely, 2^49149791493 is an apocalyptic number.

It is an amenable number.

49149791493 is a deficient number, since it is larger than the sum of its proper divisors (22837900539).

49149791493 is a wasteful number, since it uses less digits than its factorization.

49149791493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10225.

The product of its digits is 8817984, while the sum is 60.

The spelling of 49149791493 in words is "forty-nine billion, one hundred forty-nine million, seven hundred ninety-one thousand, four hundred ninety-three".