49749793819 has 32 divisors (see below), whose sum is σ = 57607925760. Its totient is φ = 42488762400.

The previous prime is 49749793813. The next prime is 49749793853. The reversal of 49749793819 is 91839794794.

49749793819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 49749793819 - 2⁹ = 49749793307 is a prime.

It is a super-2 number, since 2×49749793819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49749793813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17135922 + ... + 17138824.

It is an arithmetic number, because the mean of its divisors is an integer number (1800247680).

Almost surely, 2^49749793819 is an apocalyptic number.

49749793819 is a deficient number, since it is larger than the sum of its proper divisors (7858131941).

49749793819 is a wasteful number, since it uses less digits than its factorization.

49749793819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its digits is 123451776, while the sum is 70.

The spelling of 49749793819 in words is "forty-nine billion, seven hundred forty-nine million, seven hundred ninety-three thousand, eight hundred nineteen".