49999599999 has 32 divisors (see below), whose sum is σ = 76160609280. Its totient is φ = 32399870400.

The previous prime is 49999599961. The next prime is 49999600037. The reversal of 49999599999 is 99999599994.

49999599999 is a `hidden beast` number, since 4 + 9 + 9 + 9 + 9 + 599 + 9 + 9 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (49999599961) and next prime (49999600037).

It is not a de Polignac number, because 49999599999 - 2¹² = 49999595903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49999595999) 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, 216664 + ... + 383330.

It is an arithmetic number, because the mean of its divisors is an integer number (2380019040).

Almost surely, 2^49999599999 is an apocalyptic number.

49999599999 is a deficient number, since it is larger than the sum of its proper divisors (26161009281).

49999599999 is a wasteful number, since it uses less digits than its factorization.

49999599999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166988 (or 166982 counting only the distinct ones).

The product of its digits is 7748409780, while the sum is 90.

The spelling of 49999599999 in words is "forty-nine billion, nine hundred ninety-nine million, five hundred ninety-nine thousand, nine hundred ninety-nine".